diff --git a/libc/dns/resolv/res_cache.c b/libc/dns/resolv/res_cache.c
index 15d04c2..c431835 100644
--- a/libc/dns/resolv/res_cache.c
+++ b/libc/dns/resolv/res_cache.c
@@ -1090,7 +1090,7 @@
         XLOG("ns_parserr failed. %s\n", strerror(errno));
     }
 
-    XLOG("TTL = %d\n", result);
+    XLOG("TTL = %lu\n", result);
 
     return result;
 }