diff --git a/guide/english/python/calling-functions/index.md b/guide/english/python/calling-functions/index.md
index 83d50fdf27..ac01d86914 100644
--- a/guide/english/python/calling-functions/index.md
+++ b/guide/english/python/calling-functions/index.md
@@ -1,7 +1,7 @@
 ---
 title: Python Calling Functions
 ---
-A function definition statement does not execute the function. Executing (calling) a function is done by using the name of the function followed by parenthesis enclosing required arguments (if any).
+A function definition statement does not execute the function. Executing (calling) a function is done by using the name of the function followed by parenthesis enclosing the required arguments (if any).
 
     >>> def say_hello():
     ...     print('Hello')
@@ -44,4 +44,4 @@ The arguments used to call a function cannot be reassigned by the function, but
     >>> a = [1, 2, 3]
     >>> fn(a)
     >>> a
-    [1, 2, 3, 1]
\ No newline at end of file
+    [1, 2, 3, 1]