diff --git a/torch/_dynamo/polyfills/sys.py b/torch/_dynamo/polyfills/sys.py
index e9479eda8a086..83ace5d4489c8 100644
--- a/torch/_dynamo/polyfills/sys.py
+++ b/torch/_dynamo/polyfills/sys.py
@@ -2,5 +2,18 @@
 Python polyfills for sys
 """
 
+from __future__ import annotations
 
-__all__ = []  # type: ignore[var-annotated]
+import sys
+
+from ..decorators import substitute_in_graph
+
+
+__all__ = [
+    "intern",
+]
+
+
+@substitute_in_graph(sys.intern, can_constant_fold_through=True)
+def intern(string: str, /) -> str:
+    return string