diff --git a/Lib/symbol.py b/Lib/symbol.py
index 34143b5..5cf4a65 100755
--- a/Lib/symbol.py
+++ b/Lib/symbol.py
@@ -100,7 +100,7 @@
         sym_name[_value] = _name
 
 
-def main():
+def _main():
     import sys
     import token
     if len(sys.argv) == 1:
@@ -108,4 +108,4 @@
     token._main()
 
 if __name__ == "__main__":
-    main()
+    _main()