diff --git a/SpiffWorkflow/bpmn/serializer/workflow.py b/SpiffWorkflow/bpmn/serializer/workflow.py
index a13af7d0..e653bf55 100644
--- a/SpiffWorkflow/bpmn/serializer/workflow.py
+++ b/SpiffWorkflow/bpmn/serializer/workflow.py
@@ -138,7 +138,7 @@ class BpmnWorkflowSerializer:
             the version of the serializer the serilization we done with, if present
         """
         if isinstance(serialization, dict):
-            return serialization.get(self.VERsiON_KEY)
+            return serialization.get(self.VERSION_KEY)
         elif isinstance(serialization, str):
             dct = json.loads(serialization, cls=self.json_decoder_cls)
             return dct.get(self.VERSION_KEY)