diff --git a/psycopg/connection_type.c b/psycopg/connection_type.c
index 358acfe13ee7e5fed7e46e14cf27c930a4270908..cf41be39adbd74973df6d1b7d97a308c2f497f05 100644
--- a/psycopg/connection_type.c
+++ b/psycopg/connection_type.c
@@ -1439,9 +1439,7 @@ connection_setup(connectionObject *self, const char *dsn, long int async)
     Py_END_ALLOW_THREADS;
     
     pthread_mutex_lock(&self->lock);
-    if (register_type_uint(self, &tstate)) {
-        goto exit;
-    }
+    register_type_uint(self, &tstate);
     if (tstate) {
         free(tstate);
         tstate = NULL;