diff --git a/subcmds/sync.py b/subcmds/sync.py
index 3ad0627d..2953ee3b 100644
--- a/subcmds/sync.py
+++ b/subcmds/sync.py
@@ -528,7 +528,7 @@ later is required to fix a server side protocol bug.
 
     pm.end()
 
-    return ret
+    return ret and not err_results
 
   def _GCProjects(self, projects, opt, err_event):
     gc_gitdirs = {}