diff --git a/env_universal.cpp b/env_universal.cpp
index c7d060ad7..b773ee32a 100644
--- a/env_universal.cpp
+++ b/env_universal.cpp
@@ -123,7 +123,7 @@ static int try_get_socket_once(void)
 
     free(dir);
 
-    debug(3, L"Connect to socket %s at fd %2", name.c_str(), s);
+    debug(3, L"Connect to socket %s at fd %d", name.c_str(), s);
 
     struct sockaddr_un local = {};
     local.sun_family = AF_UNIX;
@@ -132,6 +132,7 @@ static int try_get_socket_once(void)
     if (connect(s, (struct sockaddr *)&local, sizeof local) == -1)
     {
         close(s);
+        wperror(L"connect");
         return -1;
     }