diff --git a/ChangeLog b/ChangeLog
index 4f85c9b27..30ed7d025 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,8 @@
 2002-07-18  Duncan Mak  <duncan@ximian.com>
 
 	* parser/Gtk.metadata: Mark gtk_radio_menu_item_new_with_label, 
-	gtk_radio_button_new_with_label and gtk_radio_button_new with
-	null_ok flags.
+	gtk_radio_button_new_with_label, gtk_radio_button_new and
+	gtk_radio_button_new_with_mnemonic with null_ok flags.
 
 2002-07-17  Radek Doulik  <rodo@ximian.com>
 
diff --git a/generator/gtkapi.xml b/generator/gtkapi.xml
index b863a05ba..342db074b 100644
--- a/generator/gtkapi.xml
+++ b/generator/gtkapi.xml
@@ -12771,7 +12771,7 @@
       </constructor>
       <constructor cname="gtk_radio_button_new_with_mnemonic" preferred="1">
         <parameters>
-          <parameter type="GSList*" name="group"/>
+          <parameter type="GSList*" name="group" null_ok="1"/>
           <parameter type="const-gchar*" name="label"/>
         </parameters>
       </constructor>
diff --git a/parser/Gtk.metadata b/parser/Gtk.metadata
index 7bc2c872e..4c2dbb173 100644
--- a/parser/Gtk.metadata
+++ b/parser/Gtk.metadata
@@ -1703,6 +1703,16 @@
    </attribute>
   </data>
 </rule>
-
-
+<rule>
+  <class name="GtkRadioButton">
+    <constructor>gtk_radio_button_new_with_mnemonic</constructor>
+  </class>
+  <data>
+   <attribute target="param">
+    <filter level="type">GSList*</filter>
+    <name>null_ok</name>
+    <value>1</value>
+   </attribute>
+  </data>
+</rule>
 </metadata>
diff --git a/sources/Gtk.metadata b/sources/Gtk.metadata
index 7bc2c872e..4c2dbb173 100644
--- a/sources/Gtk.metadata
+++ b/sources/Gtk.metadata
@@ -1703,6 +1703,16 @@
    </attribute>
   </data>
 </rule>
-
-
+<rule>
+  <class name="GtkRadioButton">
+    <constructor>gtk_radio_button_new_with_mnemonic</constructor>
+  </class>
+  <data>
+   <attribute target="param">
+    <filter level="type">GSList*</filter>
+    <name>null_ok</name>
+    <value>1</value>
+   </attribute>
+  </data>
+</rule>
 </metadata>