diff --git a/tests/json_echo/run-test.py b/tests/json_echo/run-test.py
index a636d5f..fa7d69a 100755
--- a/tests/json_echo/run-test.py
+++ b/tests/json_echo/run-test.py
@@ -119,7 +119,7 @@ def get_handle(output, search):
             else:
                 data = item
 
-            k = search.keys()[0]
+            k = list(search.keys())[0]
 
             if not k in data:
                 continue