diff --git a/sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/simulator/__init__.py b/sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/simulator/__init__.py
index 44cec1400155..9011665f66b6 100644
--- a/sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/simulator/__init__.py
+++ b/sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/simulator/__init__.py
@@ -3,7 +3,7 @@
 from ._constants import SupportedLanguages
 from ._direct_attack_simulator import DirectAttackSimulator
 from ._indirect_attack_simulator import IndirectAttackSimulator
-from .simulator import Simulator
+from ._simulator import Simulator
 
 __all__ = [
     "AdversarialSimulator",
diff --git a/sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/simulator/simulator.py b/sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/simulator/_simulator.py
similarity index 100%
rename from sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/simulator/simulator.py
rename to sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/simulator/_simulator.py