diff --git a/pango/Pango.metadata b/pango/Pango.metadata
index f36791297..0346b71e0 100644
--- a/pango/Pango.metadata
+++ b/pango/Pango.metadata
@@ -39,6 +39,7 @@
   <attr path="/api/namespace/class[@cname='PangoCairo_']/method" name="library">libpangocairo-1.0-0.dll</attr>
   <attr path="/api/namespace/class[@cname='PangoCairo_']/method[@name='ContextGetFontOptions']" name="hidden">1</attr>
   <attr path="/api/namespace/class[@cname='PangoCairo_']/method[@name='ContextSetFontOptions']" name="hidden">1</attr>
+  <attr path="/api/namespace/class[@cname='PangoGlobal']/method[@name='ExtentsToPixels']/*/*[@type='PangoRectangle*']" name="pass_as">ref</attr>
   <attr path="/api/namespace/class[@cname='PangoGlobal']/method[@name='GetMirrorChar']" name="hidden">1</attr>
   <attr path="/api/namespace/class[@cname='PangoGlobal']/method[@name='ParseMarkup']" name="hidden">1</attr>
   <attr path="/api/namespace/class[@cname='PangoGlobal']/method[@name='ReadLine']" name="hidden">1</attr>