diff --git a/plugins/prism-interface/src/main/java/org/polypheny/db/prisminterface/utils/PolyValueSerializer.java b/plugins/prism-interface/src/main/java/org/polypheny/db/prisminterface/utils/PolyValueSerializer.java
index 8fadac4067..7de33cc377 100644
--- a/plugins/prism-interface/src/main/java/org/polypheny/db/prisminterface/utils/PolyValueSerializer.java
+++ b/plugins/prism-interface/src/main/java/org/polypheny/db/prisminterface/utils/PolyValueSerializer.java
@@ -353,7 +353,13 @@ private static Direction buildProtoEdgeDirection( EdgeDirection direction ) {
 
 
     public static ProtoPath buildProtoPath( PolyPath polyPath ) {
-        throw new NotImplementedException();
+        /*
+            TODO:   implement paths for graph results
+                    1) implement the proto value ProtoPath
+                    2) implement serialization here
+                    3) add fields to dummy class in drivers
+        */
+        throw new NotImplementedException("Paths can not yet be serialized.");
     }