diff --git a/test/basetest/hooks.py b/test/basetest/hooks.py
index d8b7b3377..cfb364893 100644
--- a/test/basetest/hooks.py
+++ b/test/basetest/hooks.py
@@ -32,7 +32,7 @@ def json_decoder(string):
 
     try:
         return decoder(string)
-    except json.JSONDecodeError as e:
+    except ValueError as e:
         return InvalidJSON(string, str(e))