diff --git a/tox.ini b/tox.ini
index 86794d2c..71f23998 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,7 +29,7 @@ downloadcache = ~/cache/pip
 
 [testenv:debug]
 
-commands = oslo_debug_helper.sh {posargs}
+commands = oslo_debug_helper {posargs}
 
 [flake8]
 # F821: undefined name