diff --git a/src/node_http2.cc b/src/node_http2.cc
index f4f8eeb17c6ebf..fc345e52b23e2e 100644
--- a/src/node_http2.cc
+++ b/src/node_http2.cc
@@ -1136,7 +1136,7 @@ int Http2Session::OnNghttpError(nghttp2_session* handle,
   // Unfortunately, this is currently the only way for us to know if
   // the session errored because the peer is not an http2 peer.
   Http2Session* session = static_cast<Http2Session*>(user_data);
-  Debug(session, "Error '%.*s'", len, message);
+  Debug(session, "Error '%s'", message);
   if (strncmp(message, BAD_PEER_MESSAGE, len) == 0) {
     Environment* env = session->env();
     Isolate* isolate = env->isolate();