diff --git a/curriculum/challenges/english/10-coding-interview-prep/rosetta-code/cumulative-standard-deviation.md b/curriculum/challenges/english/10-coding-interview-prep/rosetta-code/cumulative-standard-deviation.md
index 4ca5496cb7..c3eac32fe9 100644
--- a/curriculum/challenges/english/10-coding-interview-prep/rosetta-code/cumulative-standard-deviation.md
+++ b/curriculum/challenges/english/10-coding-interview-prep/rosetta-code/cumulative-standard-deviation.md
@@ -8,7 +8,7 @@ dashedName: cumulative-standard-deviation
 
 # --description--
 
-Write a function that takes an array of numbers as parameter and returns the [standard deviation](<https://en.wikipedia.org/wiki/Standard Deviation>) of the series.
+Write a function that takes an array of numbers as parameter and returns the [standard deviation](<https://en.wikipedia.org/wiki/Standard_deviation>) of the series.
 
 # --hints--