diff --git a/src/java-additional/org/eclipse/elk/graph/json/JsonAdapter.xtend b/src/java-additional/org/eclipse/elk/graph/json/JsonAdapter.xtend
index 181468c..9378be6 100644
--- a/src/java-additional/org/eclipse/elk/graph/json/JsonAdapter.xtend
+++ b/src/java-additional/org/eclipse/elk/graph/json/JsonAdapter.xtend
@@ -195,6 +195,14 @@ class JsonAdapter {
         }
     }
 
+    // - - - - - - - - - - - - - - - - - - -
+    // Remove members from a json object
+    // - - - - - - - - - - - - - - - - - - -
+    
+    def void removeJsonObj(JSONObject o, String element) {
+        o.put(element, null)
+    }
+
     // - - - - - - - - - - - - - - - - - - -
     // Add to a json array
     // - - - - - - - - - - - - - - - - - - -