diff --git a/Source/kwsys/CommandLineArguments.cxx b/Source/kwsys/CommandLineArguments.cxx
index da808539e..5a550b571 100644
--- a/Source/kwsys/CommandLineArguments.cxx
+++ b/Source/kwsys/CommandLineArguments.cxx
@@ -306,6 +306,7 @@ int CommandLineArguments::Parse()
           this->Internals->LastArgument --;
           return 0;
           }
+        return 1;
         }
       else if ( this->StoreUnusedArgumentsFlag )
         {