diff --git a/warden3/warden_client/warden_client.py b/warden3/warden_client/warden_client.py
index b1a9951143ae398a824ec06d2f346a9357561bbb..752a9ec977b65fc0609c78312c7cf6d49fcc886a 100644
--- a/warden3/warden_client/warden_client.py
+++ b/warden3/warden_client/warden_client.py
@@ -430,5 +430,5 @@ class Client(object):
 def read_cfg(cfgfile):
     abspath = path.join(path.dirname(__file__), cfgfile)
     with open(abspath, "r") as f:
-        stripcomments = "\n".join((l for l in f if not l.lstrip().startswith("#")))
+        stripcomments = "\n".join((l for l in f if not l.lstrip().startswith("#", "//")))
         return json.loads(stripcomments)