diff --git a/agentops/client.py b/agentops/client.py
index 9af94c7c..55520487 100644
--- a/agentops/client.py
+++ b/agentops/client.py
@@ -268,7 +268,7 @@ def end_session(self,
         if token_cost == 'unknown':
             print('🖇 AgentOps: Could not determine cost of run.')
         else:
-            print('🖇 AgentOps: This run cost ${}'.format('{:.2f}'.format(token_cost) if token_cost == 0 else '{:.6f}'.format(token_cost)))
+            print('🖇 AgentOps: This run cost ${}'.format('{:.2f}'.format(token_cost) if token_cost == 0 else '{:.6f}'.format(float(token_cost))))
         self._session = None
         self._worker = None