diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
index 41670d4..1616710 100644
--- a/lib/strnlen_user.c
+++ b/lib/strnlen_user.c
@@ -109,9 +109,9 @@
 		if (max > count)
 			max = count;
 
-		if (user_access_begin(str, max)) {
+		if (user_read_access_begin(str, max)) {
 			retval = do_strnlen_user(str, count, max);
-			user_access_end();
+			user_read_access_end();
 			return retval;
 		}
 	}