diff --git a/algorithm/is_sorted_until.md b/algorithm/is_sorted_until.md
index 930bcb6e..3ad944c2 100644
--- a/algorithm/is_sorted_until.md
+++ b/algorithm/is_sorted_until.md
@@ -3,7 +3,7 @@
 
 <h6>Example:</h6>
          
-         ,,,c+ 
+         ,,,cpp
           #include <iostream> 
          #include <algorithm>