diff --git a/gio/gsocks5proxy.c b/gio/gsocks5proxy.c
index d093c81a9..764f9cf19 100644
--- a/gio/gsocks5proxy.c
+++ b/gio/gsocks5proxy.c
@@ -205,7 +205,7 @@ set_auth_msg (guint8	  *msg,
       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
 			   _("Username or password is too long for SOCKSv5 "
 			     "protocol."));
-      return FALSE;
+      return -1;
     }
 
   msg[len++] = SOCKS5_AUTH_VERSION;