diff --git a/docs/reference/gio/gio-docs.xml b/docs/reference/gio/gio-docs.xml
index 7ef921d8f..6df88dae8 100644
--- a/docs/reference/gio/gio-docs.xml
+++ b/docs/reference/gio/gio-docs.xml
@@ -152,6 +152,6 @@
     <title>Index of new symbols in 2.20</title>
   </index>
   <index role="2.22">
-    <title>Index of new symbols in 2.20</title>
+    <title>Index of new symbols in 2.22</title>
   </index>
 </book>