diff --git a/math.py b/math_test.py
similarity index 100%
rename from math.py
rename to math_test.py
diff --git a/subprocess_test.py b/subprocess_test.py
index 05fb69a..2dc6bd3 100755
--- a/subprocess_test.py
+++ b/subprocess_test.py
@@ -7,7 +7,7 @@ if __name__ == "__main__":
         ['curl', 'https://hatter.ink/ip.action'],
         capture_output=True,
         text=True,
-        # timeout=30,
+        timeout=30,
     )
     print('return code:', result.returncode)
     print(result.stdout)