diff --git a/connections/jpa/src/main/java/org/keycloak/connections/jpa/DefaultJpaConnectionProviderFactory.java b/connections/jpa/src/main/java/org/keycloak/connections/jpa/DefaultJpaConnectionProviderFactory.java
index 3ce1667..e39877b 100644
--- a/connections/jpa/src/main/java/org/keycloak/connections/jpa/DefaultJpaConnectionProviderFactory.java
+++ b/connections/jpa/src/main/java/org/keycloak/connections/jpa/DefaultJpaConnectionProviderFactory.java
@@ -69,6 +69,11 @@ public class DefaultJpaConnectionProviderFactory implements JpaConnectionProvide
properties.put(AvailableSettings.JDBC_URL, config.get("url"));
properties.put(AvailableSettings.JDBC_DRIVER, config.get("driver"));
+ String driverDialect = config.get("driverDialect");
+ if (driverDialect != null && driverDialect.length() > 0) {
+ properties.put("hibernate.dialect", driverDialect);
+ }
+
String user = config.get("user");
if (user != null) {
properties.put(AvailableSettings.JDBC_USER, user);
diff --git a/testsuite/integration/src/main/resources/META-INF/keycloak-server.json b/testsuite/integration/src/main/resources/META-INF/keycloak-server.json
index 1547746..4d74349 100755
--- a/testsuite/integration/src/main/resources/META-INF/keycloak-server.json
+++ b/testsuite/integration/src/main/resources/META-INF/keycloak-server.json
@@ -60,6 +60,7 @@
"default": {
"url": "${keycloak.connectionsJpa.url:jdbc:h2:mem:test}",
"driver": "${keycloak.connectionsJpa.driver:org.h2.Driver}",
+ "driverDialect": "${keycloak.connectionsJpa.driverDialect:}",
"user": "${keycloak.connectionsJpa.user:sa}",
"password": "${keycloak.connectionsJpa.password:}",
"databaseSchema": "${keycloak.connectionsJpa.databaseSchema:create-drop}"
