diff --git a/exercises/practice/square-root/square-root.coffee b/exercises/practice/square-root/square-root.coffee
index ae6d32f..8bccbf9 100644
--- a/exercises/practice/square-root/square-root.coffee
+++ b/exercises/practice/square-root/square-root.coffee
@@ -1,4 +1,4 @@
 class SquareRoot
-  squareRoot: (radicand) ->
+  @squareRoot: (radicand) ->
 
 module.exports = SquareRoot