--- trunk/grubby/grubby.c	2012/02/18 00:35:46	1715
+++ trunk/grubby/grubby.c	2012/02/18 00:47:17	1717
@@ -3365,7 +3365,7 @@
 	defaultKernel = NULL;
     }
 
-    if (!strcmp(grubConfig, "-") && !outputFile) {
+    if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) {
 	fprintf(stderr, _("grubby: output file must be specified if stdin "
 			"is used\n"));
 	return 1;