diff --git a/src/match.c b/src/match.c
index 53620bdd..36cc922a 100644
--- a/src/match.c
+++ b/src/match.c
@@ -109,6 +109,7 @@ static int match_pattern(const char *s, const char *pattern) {
   }
 
   /* NOTREACHED */
+  return 0;
 }
 
 /*