diff --git a/src/MacVim/MMBackend.m b/src/MacVim/MMBackend.m
index 9caf92a56b..e95c16fb8a 100644
--- a/src/MacVim/MMBackend.m
+++ b/src/MacVim/MMBackend.m
@@ -3448,6 +3448,10 @@ static void socketReadCallback(CFSocketRef s,
                                       kCFSocketReadCallBack,
                                       &socketReadCallback,
                                       &ctx);
+    CFOptionFlags opt = CFSocketGetSocketFlags(socket);
+    opt &= ~(kCFSocketCloseOnInvalidate|
+        kCFSocketAutomaticallyReenableReadCallBack);
+    CFSocketSetSocketFlags(socket, opt);
     runLoopSource = CFSocketCreateRunLoopSource(NULL,
                                                 socket,
                                                 0);