diff --git a/guide/english/python/abs-function/index.md b/guide/english/python/abs-function/index.md
index c3c6825d56..318ea81c42 100644
--- a/guide/english/python/abs-function/index.md
+++ b/guide/english/python/abs-function/index.md
@@ -9,7 +9,7 @@ It takes one argument `x` - an integer, or decimal, or a complex number.
 
 ## Return Value
 
-The return value would be a positive number or zero. Even if complex number is passed, it would return its magnitude, computed as per complex number algebra.
+The return value would be a positive number or zero. Even if a complex number is passed, it would return its magnitude, computed as per complex number algebra.
 
 ## Code Sample
 ```python