diff --git a/doc/smart_ptr/intrusive_ref_counter.adoc b/doc/smart_ptr/intrusive_ref_counter.adoc
index 1d33300..32a28a6 100644
--- a/doc/smart_ptr/intrusive_ref_counter.adoc
+++ b/doc/smart_ptr/intrusive_ref_counter.adoc
@@ -107,7 +107,7 @@ intrusive_ref_counter& operator=(const intrusive_ref_counter& v) noexcept;
 ```
 ::
 Effects::: Does nothing, reference counter is not modified.
-y
+
 ### use_count
 
 ```