diff --git a/lib/multi.c b/lib/multi.c
index 4ba22c46ed..56b3faf2fa 100644
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -1354,8 +1354,8 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
   CURLMcode rc;
   CURLcode result = CURLE_OK;
   struct SingleRequest *k;
-  time_t timeout_ms;
-  time_t recv_timeout_ms;
+  timediff_t timeout_ms;
+  timediff_t recv_timeout_ms;
   timediff_t send_timeout_ms;
   int control;