diff --git a/src/main/java/de/ozgcloud/operator/keycloak/client/ProtocolMapperRepresentationHelper.java b/src/main/java/de/ozgcloud/operator/keycloak/client/ProtocolMapperRepresentationHelper.java
index 73078e95d9ddf9aa59c7b4c7ba01f5c250cd0e7b..402c3eee8f6957cdecaaab0192dd6b172ff45626 100644
--- a/src/main/java/de/ozgcloud/operator/keycloak/client/ProtocolMapperRepresentationHelper.java
+++ b/src/main/java/de/ozgcloud/operator/keycloak/client/ProtocolMapperRepresentationHelper.java
@@ -38,16 +38,16 @@ class ProtocolMapperRepresentationHelper {
 
 	public ProtocolMapperRepresentation createOrganisationsEinheitIdMapper() {
 		log.log(Level.FINE, "Create createOrganisationsEinheitIdMapper...");
-		return createUserAttributeMapper(ORGANISATIONS_EINHEIT_ID_MAPPER_NAME, buildOrganisationsEinheitMapperConfig());
+		return createUserAttributeMapper(ORGANISATIONS_EINHEIT_ID_MAPPER_NAME, buildOrganisationsEinheitIdMapperConfig());
 	}
 
-	Map<String, String> buildOrganisationsEinheitMapperConfig() {
+	Map<String, String> buildOrganisationsEinheitIdMapperConfig() {
 		var config = new HashMap<String, String>();
 		config.put(CONFIG_ACCESS_TOKEN_CLAIM_KEY, "true");
 		config.put(CONFIG_AGGREGATE_ATTRS_KEY, "true");
 		config.put(CONFIG_CLAIM_NAME_KEY, "organisationseinheitId");
 		config.put(CONFIG_ID_TOKEN_CLAIM_KEY, "true");
-		config.put(CONFIG_JSON_TYPE_LABEL_KEY, "int");
+		config.put(CONFIG_JSON_TYPE_LABEL_KEY, "String");
 		config.put(CONFIG_MULTIVALUED_KEY, "true");
 		config.put(CONFIG_USER_ATTRIBUTE_KEY, "organisationseinheitId");
 		config.put(CONFIG_USERINFO_TOKEN_CLAIM_KEY, "true");
diff --git a/src/test/java/de/ozgcloud/operator/keycloak/client/ProtocolMapperRepresentationHelperTest.java b/src/test/java/de/ozgcloud/operator/keycloak/client/ProtocolMapperRepresentationHelperTest.java
index 6bad13480087296b86da392ad9d00fefc1864a33..1c866debd972827428d013a096585179132b9f1f 100644
--- a/src/test/java/de/ozgcloud/operator/keycloak/client/ProtocolMapperRepresentationHelperTest.java
+++ b/src/test/java/de/ozgcloud/operator/keycloak/client/ProtocolMapperRepresentationHelperTest.java
@@ -46,7 +46,7 @@ class ProtocolMapperRepresentationHelperTest {
 		void shouldBuildConfig() {
 			create();
 
-			verify(helper).buildOrganisationsEinheitMapperConfig();
+			verify(helper).buildOrganisationsEinheitIdMapperConfig();
 		}
 
 		@DisplayName("build config")
@@ -85,7 +85,7 @@ class ProtocolMapperRepresentationHelperTest {
 			void shouldSetJsonTypeLabel() {
 				var config = buildConfig();
 
-				assertThat(config).containsEntry(ProtocolMapperRepresentationHelper.CONFIG_JSON_TYPE_LABEL_KEY, "int");
+				assertThat(config).containsEntry(ProtocolMapperRepresentationHelper.CONFIG_JSON_TYPE_LABEL_KEY, "String");
 			}
 
 			@Test
@@ -110,7 +110,7 @@ class ProtocolMapperRepresentationHelperTest {
 			}
 
 			private Map<String, String> buildConfig() {
-				return helper.buildOrganisationsEinheitMapperConfig();
+				return helper.buildOrganisationsEinheitIdMapperConfig();
 			}
 		}