diff --git a/client/src/pages/guide/english/html/tutorials/text-formatting-in-html/index.md b/client/src/pages/guide/english/html/tutorials/text-formatting-in-html/index.md
index 4204fdd3bd..25e7802958 100644
--- a/client/src/pages/guide/english/html/tutorials/text-formatting-in-html/index.md
+++ b/client/src/pages/guide/english/html/tutorials/text-formatting-in-html/index.md
@@ -55,7 +55,7 @@ HTML isn't boring. <ins>You can make a lot of combinations of elements!</ins>
 Using element `<sub>` gives you a useful formatting as subscripted text (showing it smaller on the bottom). There is an example code: 
 
 ``` 
-This was in 2003 year <sub>(needs a link).
+This was in 2003 year <sub>(needs a link)</sub>.
 ``` 
 
 ### Superscripted