diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/core/management/ManagementImpl.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/core/management/ManagementImpl.java
index 1cc2166d36d741a23a6a202ce6cf902b5d081f42..451e7385db467a1ec846beaad2e9b1253645094d 100644
--- a/gemeinsamforschen/src/main/java/unipotsdam/gf/core/management/ManagementImpl.java
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/core/management/ManagementImpl.java
@@ -193,7 +193,7 @@ public class ManagementImpl implements Management {
 
             String mysqlRequest2 =
                     "INSERT INTO groupuser (`userEmail`, `groupId`) values (?,?)";
-            connect.issueInsertOrDeleteStatement(mysqlRequest2, groupMember.getEmail(), projectId);
+            connect.issueInsertOrDeleteStatement(mysqlRequest2, groupMember.getEmail(), id);
             connect.close();
         }