diff --git a/charmhelpers/fetch/snap.py b/charmhelpers/fetch/snap.py
index 36d6bce9a..231e4fded 100644
--- a/charmhelpers/fetch/snap.py
+++ b/charmhelpers/fetch/snap.py
@@ -52,7 +52,7 @@ def _snap_exec(commands):
     :param commands: List commands
     :return: Integer exit code
     """
-    assert type(commands) == list
+    assert type(commands) is list
 
     retry_count = 0
     return_code = None