diff --git a/src/database/database-dummy.cpp b/src/database/database-dummy.cpp
index 9fa325b93..19cb6e4fa 100644
--- a/src/database/database-dummy.cpp
+++ b/src/database/database-dummy.cpp
@@ -81,7 +81,7 @@ void Database_Dummy::listPlayers(std::vector<std::string> &res)
 	}
 }
 
-bool Database_Dummy::getModEntries(const std::string &modname, StringMap *storage)
+void Database_Dummy::getModEntries(const std::string &modname, StringMap *storage)
 {
 	const auto mod_pair = m_mod_storage_database.find(modname);
 	if (mod_pair != m_mod_storage_database.cend()) {
@@ -89,10 +89,9 @@ bool Database_Dummy::getModEntries(const std::string &modname, StringMap *storag
 			(*storage)[pair.first] = pair.second;
 		}
 	}
-	return true;
 }
 
-bool Database_Dummy::getModKeys(const std::string &modname, std::vector<std::string> *storage)
+void Database_Dummy::getModKeys(const std::string &modname, std::vector<std::string> *storage)
 {
 	const auto mod_pair = m_mod_storage_database.find(modname);
 	if (mod_pair != m_mod_storage_database.cend()) {
@@ -100,7 +99,6 @@ bool Database_Dummy::getModKeys(const std::string &modname, std::vector<std::str
 		for (const auto &pair : mod_pair->second)
 			storage->push_back(pair.first);
 	}
-	return true;
 }
 
 bool Database_Dummy::getModEntry(const std::string &modname,
diff --git a/src/database/database-dummy.h b/src/database/database-dummy.h
index 42964b5bc..ecfa82c34 100644
--- a/src/database/database-dummy.h
+++ b/src/database/database-dummy.h
@@ -37,8 +37,8 @@ public:
 	bool removePlayer(const std::string &name);
 	void listPlayers(std::vector<std::string> &res);
 
-	bool getModEntries(const std::string &modname, StringMap *storage);
-	bool getModKeys(const std::string &modname, std::vector<std::string> *storage);
+	void getModEntries(const std::string &modname, StringMap *storage);
+	void getModKeys(const std::string &modname, std::vector<std::string> *storage);
 	bool getModEntry(const std::string &modname,
 			const std::string &key, std::string *value);
 	bool hasModEntry(const std::string &modname, const std::string &key);
diff --git a/src/database/database-files.cpp b/src/database/database-files.cpp
index e90a50619..5b41f6c19 100644
--- a/src/database/database-files.cpp
+++ b/src/database/database-files.cpp
@@ -381,34 +381,30 @@ ModStorageDatabaseFiles::ModStorageDatabaseFiles(const std::string &savedir):
 {
 }
 
-bool ModStorageDatabaseFiles::getModEntries(const std::string &modname, StringMap *storage)
+void ModStorageDatabaseFiles::getModEntries(const std::string &modname, StringMap *storage)
 {
 	Json::Value *meta = getOrCreateJson(modname);
 	if (!meta)
-		return false;
+		return;
 
 	const Json::Value::Members attr_list = meta->getMemberNames();
 	for (const auto &it : attr_list) {
 		Json::Value attr_value = (*meta)[it];
 		(*storage)[it] = attr_value.asString();
 	}
-
-	return true;
 }
 
-bool ModStorageDatabaseFiles::getModKeys(const std::string &modname,
+void ModStorageDatabaseFiles::getModKeys(const std::string &modname,
 		std::vector<std::string> *storage)
 {
 	Json::Value *meta = getOrCreateJson(modname);
 	if (!meta)
-		return false;
+		return;
 
 	std::vector<std::string> keys = meta->getMemberNames();
 	storage->reserve(storage->size() + keys.size());
 	for (std::string &key : keys)
 		storage->push_back(std::move(key));
-
-	return true;
 }
 
 bool ModStorageDatabaseFiles::getModEntry(const std::string &modname,
diff --git a/src/database/database-files.h b/src/database/database-files.h
index 20b0b5896..09116b2b4 100644
--- a/src/database/database-files.h
+++ b/src/database/database-files.h
@@ -78,8 +78,8 @@ public:
 	ModStorageDatabaseFiles(const std::string &savedir);
 	virtual ~ModStorageDatabaseFiles() = default;
 
-	virtual bool getModEntries(const std::string &modname, StringMap *storage);
-	virtual bool getModKeys(const std::string &modname, std::vector<std::string> *storage);
+	virtual void getModEntries(const std::string &modname, StringMap *storage);
+	virtual void getModKeys(const std::string &modname, std::vector<std::string> *storage);
 	virtual bool getModEntry(const std::string &modname,
 		const std::string &key, std::string *value);
 	virtual bool hasModEntry(const std::string &modname, const std::string &key);
diff --git a/src/database/database-postgresql.cpp b/src/database/database-postgresql.cpp
index 1c51a8d85..d84b26b55 100644
--- a/src/database/database-postgresql.cpp
+++ b/src/database/database-postgresql.cpp
@@ -866,7 +866,7 @@ void ModStorageDatabasePostgreSQL::initStatements()
 		"SELECT DISTINCT modname FROM mod_storage");
 }
 
-bool ModStorageDatabasePostgreSQL::getModEntries(const std::string &modname, StringMap *storage)
+void ModStorageDatabasePostgreSQL::getModEntries(const std::string &modname, StringMap *storage)
 {
 	verifyDatabase();
 
@@ -882,11 +882,9 @@ bool ModStorageDatabasePostgreSQL::getModEntries(const std::string &modname, Str
 		(*storage)[pg_to_string(results, row, 0)] = pg_to_string(results, row, 1);
 
 	PQclear(results);
-
-	return true;
 }
 
-bool ModStorageDatabasePostgreSQL::getModKeys(const std::string &modname,
+void ModStorageDatabasePostgreSQL::getModKeys(const std::string &modname,
 		std::vector<std::string> *storage)
 {
 	verifyDatabase();
@@ -904,8 +902,6 @@ bool ModStorageDatabasePostgreSQL::getModKeys(const std::string &modname,
 		storage->push_back(pg_to_string(results, row, 0));
 
 	PQclear(results);
-
-	return true;
 }
 
 bool ModStorageDatabasePostgreSQL::getModEntry(const std::string &modname,
diff --git a/src/database/database-postgresql.h b/src/database/database-postgresql.h
index a587f3d9e..56b3d6b53 100644
--- a/src/database/database-postgresql.h
+++ b/src/database/database-postgresql.h
@@ -181,8 +181,8 @@ public:
 	ModStorageDatabasePostgreSQL(const std::string &connect_string);
 	~ModStorageDatabasePostgreSQL() = default;
 
-	bool getModEntries(const std::string &modname, StringMap *storage);
-	bool getModKeys(const std::string &modname, std::vector<std::string> *storage);
+	void getModEntries(const std::string &modname, StringMap *storage);
+	void getModKeys(const std::string &modname, std::vector<std::string> *storage);
 	bool getModEntry(const std::string &modname, const std::string &key, std::string *value);
 	bool hasModEntry(const std::string &modname, const std::string &key);
 	bool setModEntry(const std::string &modname,
diff --git a/src/database/database-sqlite3.cpp b/src/database/database-sqlite3.cpp
index 636864d82..7b4b6ddbe 100644
--- a/src/database/database-sqlite3.cpp
+++ b/src/database/database-sqlite3.cpp
@@ -808,7 +808,7 @@ void ModStorageDatabaseSQLite3::initStatements()
 	PREPARE_STATEMENT(remove_all, "DELETE FROM `entries` WHERE `modname` = ?");
 }
 
-bool ModStorageDatabaseSQLite3::getModEntries(const std::string &modname, StringMap *storage)
+void ModStorageDatabaseSQLite3::getModEntries(const std::string &modname, StringMap *storage)
 {
 	verifyDatabase();
 
@@ -823,11 +823,9 @@ bool ModStorageDatabaseSQLite3::getModEntries(const std::string &modname, String
 	sqlite3_vrfy(sqlite3_errcode(m_database), SQLITE_DONE);
 
 	sqlite3_reset(m_stmt_get_all);
-
-	return true;
 }
 
-bool ModStorageDatabaseSQLite3::getModKeys(const std::string &modname,
+void ModStorageDatabaseSQLite3::getModKeys(const std::string &modname,
 		std::vector<std::string> *storage)
 {
 	verifyDatabase();
@@ -841,8 +839,6 @@ bool ModStorageDatabaseSQLite3::getModKeys(const std::string &modname,
 	sqlite3_vrfy(sqlite3_errcode(m_database), SQLITE_DONE);
 
 	sqlite3_reset(m_stmt_get_keys);
-
-	return true;
 }
 
 bool ModStorageDatabaseSQLite3::getModEntry(const std::string &modname,
diff --git a/src/database/database-sqlite3.h b/src/database/database-sqlite3.h
index 3eaacbe11..a400537ff 100644
--- a/src/database/database-sqlite3.h
+++ b/src/database/database-sqlite3.h
@@ -239,8 +239,8 @@ public:
 	ModStorageDatabaseSQLite3(const std::string &savedir);
 	virtual ~ModStorageDatabaseSQLite3();
 
-	virtual bool getModEntries(const std::string &modname, StringMap *storage);
-	virtual bool getModKeys(const std::string &modname, std::vector<std::string> *storage);
+	virtual void getModEntries(const std::string &modname, StringMap *storage);
+	virtual void getModKeys(const std::string &modname, std::vector<std::string> *storage);
 	virtual bool getModEntry(const std::string &modname,
 		const std::string &key, std::string *value);
 	virtual bool hasModEntry(const std::string &modname, const std::string &key);
diff --git a/src/database/database.h b/src/database/database.h
index 123cdadda..84912e795 100644
--- a/src/database/database.h
+++ b/src/database/database.h
@@ -91,8 +91,8 @@ class ModStorageDatabase : public Database
 public:
 	virtual ~ModStorageDatabase() = default;
 
-	virtual bool getModEntries(const std::string &modname, StringMap *storage) = 0;
-	virtual bool getModKeys(const std::string &modname, std::vector<std::string> *storage) = 0;
+	virtual void getModEntries(const std::string &modname, StringMap *storage) = 0;
+	virtual void getModKeys(const std::string &modname, std::vector<std::string> *storage) = 0;
 	virtual bool hasModEntry(const std::string &modname, const std::string &key) = 0;
 	virtual bool getModEntry(const std::string &modname,
 		const std::string &key, std::string *value) = 0;