@@ -21,22 +21,22 @@
 #import "OFMessagePackRepresentation.h"
 #import "OFSerialization.h"
 
 OF_ASSUME_NONNULL_BEGIN
 
-/*!
+/**
  * @class OFNull OFNull.h ObjFW/OFNull.h
  *
  * @brief A class for representing null values in collections.
  */
 OF_SUBCLASSING_RESTRICTED
 @interface OFNull: OFObject <OFCopying, OFSerialization, OFJSONRepresentation,
     OFMessagePackRepresentation, OFASN1DERRepresentation>
-/*!
+/**
  * @brief Returns an OFNull singleton.
  *
  * @return An OFNull singleton
  */
 + (OFNull *)null;
 @end
 
 OF_ASSUME_NONNULL_END