diff --git a/dconv.py b/dconv.py
index 0c7296b..07a44f2 100644
--- a/dconv.py
+++ b/dconv.py
@@ -16,6 +16,7 @@
 # limitations under the License.
 
 import os
+import sys
 from optparse import OptionParser
 
 from parser import converter, git_parser