diff --git a/wally-pipelined/regression/regression-wally.py b/wally-pipelined/regression/regression-wally.py
index 1494bc46e..810e7ca9d 100755
--- a/wally-pipelined/regression/regression-wally.py
+++ b/wally-pipelined/regression/regression-wally.py
@@ -89,6 +89,7 @@ def run_test_case(config):
 
 def main():
     """Run the tests and count the failures"""
+    global configs
     try:
         os.mkdir("logs")
     except: