diff --git a/lib/http2.c b/lib/http2.c
index 658d6141eaf895..9410cf28299c6a 100644
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -1062,6 +1062,15 @@ CURLcode Curl_http2_switched(struct connectdata *conn,
     return CURLE_HTTP2;
   }
 
+  /* Try to send some frames since we may read SETTINGS already. */
+  rv = nghttp2_session_send(httpc->h2);
+
+  if(rv != 0) {
+    failf(data, "nghttp2_session_send() failed: %s(%d)",
+          nghttp2_strerror(rv), rv);
+    return CURLE_HTTP2;
+  }
+
   return CURLE_OK;
 }
 
diff --git a/tests/data/test1801 b/tests/data/test1801
index a95e76a221d4b6..0aedfed51e12fb 100644
--- a/tests/data/test1801
+++ b/tests/data/test1801
@@ -23,7 +23,6 @@ lies!
 
 <datacheck>
 HTTP/1.1 101 Switching!
-
 </datacheck>
 
 # listen to the upgrade request!
@@ -62,9 +61,9 @@ Upgrade: %H2CVER
 HTTP2-Settings: AAMAAABkAAQAAP__
 
 </protocol>
-# nothing is returned, because no HTTP/2 data nor headers was handled
+# CURLE_HTTP2: Send failure: Broken pipe
 <errorcode>
-56
+16
 </errorcode>
 </verify>
 </testcase>