diff --git a/2-variables/09_hypotenuse.py b/2-variables/09_hypotenuse.py
index 9b1894f..eb6b9e7 100644
--- a/2-variables/09_hypotenuse.py
+++ b/2-variables/09_hypotenuse.py
@@ -1,4 +1,4 @@
-# Pythagorean Theroem 📐
+# Pythagorean Theorem 📐
 # Codédex
 
 a = int(input("Enter a: "))