diff --git a/girs/Gst-1.0.gir b/girs/Gst-1.0.gir
index d3aee71f7f..8c507e64f7 100644
--- a/girs/Gst-1.0.gir
+++ b/girs/Gst-1.0.gir
@@ -54390,11 +54390,11 @@ the result.</doc>
       <parameters>
         <parameter name="a" transfer-ownership="none">
           <doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gstutils.c">a filename to compare with @b</doc>
-          <type name="utf8" c:type="const gchar*"/>
+          <type name="filename" c:type="const gchar*"/>
         </parameter>
         <parameter name="b" transfer-ownership="none">
           <doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gstutils.c">a filename to compare with @a</doc>
-          <type name="utf8" c:type="const gchar*"/>
+          <type name="filename" c:type="const gchar*"/>
         </parameter>
       </parameters>
     </function>
diff --git a/subprojects/gstreamer/gst/gstutils.c b/subprojects/gstreamer/gst/gstutils.c
index f4417cf46d..9ca4c9140d 100644
--- a/subprojects/gstreamer/gst/gstutils.c
+++ b/subprojects/gstreamer/gst/gstutils.c
@@ -4804,8 +4804,8 @@ gst_type_is_plugin_api (GType type, GstPluginAPIFlags * flags)
 
 /**
  * gst_util_filename_compare:
- * @a: a filename to compare with @b
- * @b: a filename to compare with @a
+ * @a: (type filename): a filename to compare with @b
+ * @b: (type filename): a filename to compare with @a
  *
  * Compares the given filenames using natural ordering.
  *