diff --git a/heatclient/common/utils.py b/heatclient/common/utils.py
index cddd6dc3..b5f4bda3 100644
--- a/heatclient/common/utils.py
+++ b/heatclient/common/utils.py
@@ -116,10 +116,6 @@ def find_resource(manager, name_or_id):
         raise exc.CommandError(msg)
 
 
-def string_to_bool(arg):
-    return arg.strip().lower() in ('t', 'true', 'yes', '1')
-
-
 def env(*vars, **kwargs):
     """Search for the first defined of possibly many env vars