diff --git a/letsencrypt-apache/letsencrypt_apache/parser.py b/letsencrypt-apache/letsencrypt_apache/parser.py
index b48551d00..5c18208bb 100644
--- a/letsencrypt-apache/letsencrypt_apache/parser.py
+++ b/letsencrypt-apache/letsencrypt_apache/parser.py
@@ -101,6 +101,7 @@ class ApacheParser(object):
         try:
             matches.remove("DUMP_RUN_CFG")
         except ValueError:
+            return
             #raise errors.PluginError("Unable to parse runtime variables")
 
         for match in matches: