diff --git a/docs/catalog/clickhouse.md b/docs/catalog/clickhouse.md
index 608d650b..72bb1e37 100644
--- a/docs/catalog/clickhouse.md
+++ b/docs/catalog/clickhouse.md
@@ -33,7 +33,7 @@ The ClickHouse Wrapper allows you to read and write data from ClickHouse within
 | text             | String          |
 | date             | Date            |
 | timestamp        | DateTime        |
-| *                | Nullable<T>     |
+| *                | Nullable&lt;T&gt; |
 
 ## Preparation