diff --git a/lib/transfer.c b/lib/transfer.c
index 3408a84146f72577fa3298a59ca23022616020d3..f996b0ee5b1e64b25b2d52773f980f9568cbb2ed 100644
--- a/lib/transfer.c
+++ b/lib/transfer.c
@@ -1075,7 +1075,7 @@ CURLcode Curl_readwrite(struct connectdata *conn,
       */
 
       long ms = Curl_tvdiff(k->now, k->start100);
-      if(ms > CURL_TIMEOUT_EXPECT_100) {
+      if(ms >= CURL_TIMEOUT_EXPECT_100) {
         /* we've waited long enough, continue anyway */
         k->exp100 = EXP100_SEND_DATA;
         k->keepon |= KEEP_SEND;