diff --git a/src/conn.cpp b/src/conn.cpp
index 4d4fb3b..c1da87b 100644
--- a/src/conn.cpp
+++ b/src/conn.cpp
@@ -114,6 +114,7 @@ void ConnBase::bevRead()
         if(header[2]&pva_flags::Control) {
             // Control messages are not actually useful
             evbuffer_drain(rx, 8);
+            bufferevent_setwatermark(bev.get(), EV_READ, 8, tcp_readahead);
             continue;
         }
         // application message