diff --git a/lsyncd.c b/lsyncd.c
index b794570..c199c5c 100644
--- a/lsyncd.c
+++ b/lsyncd.c
@@ -957,6 +957,7 @@ l_readdir (lua_State *L)
 		lua_pushboolean(L, isdir);
 		lua_settable(L, -3);
 	}
+	closedir(d);
 	return 1;
 }