1 files changed, 3 insertions, 1 deletions
diff --git a/tools/certtools.py b/tools/certtools.py
index af94fb8..e1ca57a 100644
--- a/tools/certtools.py
+++ b/tools/certtools.py
@@ -117,7 +117,9 @@ def add_chain(baseurl, submission):
             json.dumps(submission)).read()
         return json.loads(result)
     except urllib2.HTTPError, e:
-        print "ERROR:", e.read()
+        print "ERROR", e.code,":", e.read()
+        if e.code == 400:
+            return None
         sys.exit(1)
     except ValueError, e:
         print "==== FAILED REQUEST ===="