diff --git a/sas/sasjs/services/auditors/postdata.sas b/sas/sasjs/services/auditors/postdata.sas
index d97e356..151fb28 100644
--- a/sas/sasjs/services/auditors/postdata.sas
+++ b/sas/sasjs/services/auditors/postdata.sas
@@ -102,7 +102,7 @@ data APPROVE1;
   putlog (_all_)(=);
   /* convert provided string DIFFTIME back to a numeric SAS datetime */
   if "&action" ne "SHOW_DIFFS" then do;
-    call symputx('DIFFTIME',input(cats(symget('DIFFTIME')),anydtdtm18.));
+    call symputx('DIFFTIME',input(symget('DIFFTIME'),anydtdtm18.));
   end;
   length difftime $32;
   DIFFTIME=put(&sastime,datetime19.2);