diff --git a/tests/test_base_plugin.py b/tests/test_base_plugin.py
index f0060ae9..84f4bf3e 100644
--- a/tests/test_base_plugin.py
+++ b/tests/test_base_plugin.py
@@ -104,8 +104,8 @@ def test_plugin_info_repr(self):
                       "Redis pool set: False, Message producer set: False, Kafka client set: False, " \
                       "Zookeeper client set: False], KV store class: PanoptesTestKeyValueStore, " \
                       "Last executed timestamp: 1458947997, Last executed key: plugin_metadata:plugin__name:" \
-                      "61547fbb304169f2a076016678bc9cca:last_executed, Last results timestamp: 1458948005, " \
-                      "Last results key: plugin_metadata:plugin__name:61547fbb304169f2a076016678bc9cca:last_results, " \
+                      "0846d379300f4be100f824125fbbe575:last_executed, Last results timestamp: 1458948005, " \
+                      "Last results key: plugin_metadata:plugin__name:0846d379300f4be100f824125fbbe575:last_results, " \
                       "Data: Data object passed, Lock: Lock is set"
 
         self.assertEqual(repr(panoptes_plugin_info), repr_string)
diff --git a/yahoo_panoptes/framework/plugins/panoptes_base_plugin.py b/yahoo_panoptes/framework/plugins/panoptes_base_plugin.py
index 1d20926d..4544f302 100644
--- a/yahoo_panoptes/framework/plugins/panoptes_base_plugin.py
+++ b/yahoo_panoptes/framework/plugins/panoptes_base_plugin.py
@@ -515,7 +515,7 @@ def signature(self):
             str: A hash of the plugin's config and data
 
         """
-        return hashlib.md5(json.dumps(self.config, sort_keys=True) + str(hash(self.data))).hexdigest()
+        return hashlib.md5(self.normalized_name + repr(self.data)).hexdigest()
 
     @property
     def lock(self):