diff --git a/reference/docs-conceptual/lang-spec/chapter-02.md b/reference/docs-conceptual/lang-spec/chapter-02.md
index d2a37cae58f3..1628c2d5881e 100644
--- a/reference/docs-conceptual/lang-spec/chapter-02.md
+++ b/reference/docs-conceptual/lang-spec/chapter-02.md
@@ -98,7 +98,7 @@ Syntax:
 
 ```Syntax
 comment:
-single-line-comment
+    single-line-comment
     requires-comment
     delimited-comment