diff --git a/matlab/AUG/rdaAUG_eff.m b/matlab/AUG/rdaAUG_eff.m
index 2265648019035fd43d6912600e500f5aeace1970..c70aa41e53b51575b7207fa1603dac5ebd24678a 100644
--- a/matlab/AUG/rdaAUG_eff.m
+++ b/matlab/AUG/rdaAUG_eff.m
@@ -211,7 +211,7 @@ if usemdsplus
   end
   adata.data=data;
   adata.edition = mdsvalue(['_oed' user diagname]);
-  if nverbose>=1 && adata.edition~=edition_in
+  if nverbose>=1 && (~isempty(edition_in) && adata.edition~=edition_in)
     warning(sprintf('\nedition in = %d is different from output edition: %d\n\n',edition_in,adata.edition));
   end
   if mod(error,2)==2; disp(['error even for ' diagname ' ; ' sigtype]); end