diff --git a/ebos/eclwriter.hh b/ebos/eclwriter.hh
index e3390b4f0..ffc719229 100644
--- a/ebos/eclwriter.hh
+++ b/ebos/eclwriter.hh
@@ -327,7 +327,7 @@ public:
                          blockData);
 
             const auto& udq_config = schedule().getUDQConfig(reportStepNum);
-            udq_config.eval( summaryState(), udqState() );
+            udq_config.eval( reportStepNum, summaryState(), udqState() );
 
             buffer = summaryState().serialize();
         }