diff --git a/sheets/python b/sheets/python
index dee8a64..63d9c4f 100644
--- a/sheets/python
+++ b/sheets/python
@@ -14,11 +14,11 @@ python -m http.server 8000
 python -m smtpd -n -c DebuggingServer localhost:1025
 
 # Pretty print a JSON
-python -mjson.tool
+python -m json.tool
 
 # Zen of Python
 # or just 'import this' in python
-python -mthis
+python -m this
 
 # See also:
 #   Python language cheat sheets at /python/