diff --git a/cloudplatform/connectivity-oauth/src/main/java/com/sap/cloud/sdk/cloudplatform/connectivity/OAuth2Service.java b/cloudplatform/connectivity-oauth/src/main/java/com/sap/cloud/sdk/cloudplatform/connectivity/OAuth2Service.java
index c63d7d241..ea3b29d8a 100644
--- a/cloudplatform/connectivity-oauth/src/main/java/com/sap/cloud/sdk/cloudplatform/connectivity/OAuth2Service.java
+++ b/cloudplatform/connectivity-oauth/src/main/java/com/sap/cloud/sdk/cloudplatform/connectivity/OAuth2Service.java
@@ -230,7 +230,7 @@ private void setAppTidInCaseOfIAS( @Nullable final String tenantId )
             additionalParameters.put("app_tid", tenantId);
             if( onBehalfOf == OnBehalfOf.NAMED_USER_CURRENT_TENANT ) {
                 // workaround until a fix is provided by IAS
-                additionalParameters.put("refresh_token", "0");
+                additionalParameters.put("refresh_expiry", "0");
             }
         }
     }