diff --git a/src/gui_w48.c b/src/gui_w48.c
index be23546..97a0ca0 100644
--- a/src/gui_w48.c
+++ b/src/gui_w48.c
@@ -3500,7 +3500,10 @@
 	{
 	    argv = (char **)malloc((argc + 1) * sizeof(char *));
 	    if (argv == NULL )
+	    {
+		vim_free(newcmdline);
 		return 0;		   /* malloc error */
+	    }
 	    pnew = newcmdline;
 	}
     }