diff --git a/src/main/py/logarithmic_and_expo_and_root_calculations.py b/src/main/py/logarithmic_and_expo_and_root_calculations.py
index 3abab62..b9df0fa 100644
--- a/src/main/py/logarithmic_and_expo_and_root_calculations.py
+++ b/src/main/py/logarithmic_and_expo_and_root_calculations.py
@@ -1,8 +1,8 @@
 import math
 
 
-def sqrt(first_number):
-    return math.sqrt(first_number)
+def sqrt(root_of):
+    return math.sqrt(root_of)
 
 
 def potentiate(first_number, second_number):