diff --git a/li.strolch.persistence.postgresql/src/main/java/li/strolch/persistence/postgresql/PostgreSqlPersistenceHandler.java b/li.strolch.persistence.postgresql/src/main/java/li/strolch/persistence/postgresql/PostgreSqlPersistenceHandler.java
index d06daab56..d211fbadb 100644
--- a/li.strolch.persistence.postgresql/src/main/java/li/strolch/persistence/postgresql/PostgreSqlPersistenceHandler.java
+++ b/li.strolch.persistence.postgresql/src/main/java/li/strolch/persistence/postgresql/PostgreSqlPersistenceHandler.java
@@ -66,7 +66,8 @@ public class PostgreSqlPersistenceHandler extends StrolchComponent implements Pe
 	@Override
 	public void initialize(ComponentConfiguration componentConfiguration) throws Exception {
 
-		Driver.register();
+		if (Driver.isRegistered())
+			Driver.register();
 
 		DbConnectionBuilder connectionBuilder = new PostgreSqlDbConnectionBuilder(getContainer(),
 				componentConfiguration);