diff --git a/mm/mmap.c b/mm/mmap.c
index 88dcc5c25225..049b8e5c18f0 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2551,7 +2551,7 @@ static int __init cmdline_parse_stack_guard_gap(char *p)
 	if (!*endptr)
 		stack_guard_gap = val << PAGE_SHIFT;
 
-	return 0;
+	return 1;
 }
 __setup("stack_guard_gap=", cmdline_parse_stack_guard_gap);