diff --git a/lib/nss.c b/lib/nss.c
index e6776fb1..b697f0a0 100644
--- a/lib/nss.c
+++ b/lib/nss.c
@@ -82,6 +82,7 @@ void nss_init(const char *nsswitch_path) {
 			p++;
 		if (*p != '\0')
 			break;
+		p = NULL;
 	}
 	if (p == NULL) {
 		goto null_subid;