--- a/gabor/gabdual.m
+++ b/gabor/gabdual.m
@@ -93,7 +93,7 @@
     if Luser~=L
         error(['%s: Incorrect transform length L=%i specified. Next valid length ' ...
                'is L=%i. See the help of DGTLENGTH for the requirements.'],...
-              upper(mfilename),L,Luser)
+              upper(mfilename),L,Luser);
     end;
 
 end;