diff --git a/Source/Libs/GdkSharp/GdkSharp-api.xml b/Source/Libs/GdkSharp/GdkSharp-api.xml
index 1e12af514..0b94053f9 100644
--- a/Source/Libs/GdkSharp/GdkSharp-api.xml
+++ b/Source/Libs/GdkSharp/GdkSharp-api.xml
@@ -5687,7 +5687,7 @@
           <parameter type="int" name="height" />
         </parameters>
       </constructor>
-      <constructor cname="gdk_pixbuf_get_from_surface">
+      <constructor cname="gdk_pixbuf_get_from_surface" library="Library.Gdk">
         <parameters>
           <parameter type="cairo_surface_t*" name="surface" />
           <parameter type="gint" name="src_x" />
@@ -5696,7 +5696,7 @@
           <parameter type="gint" name="height" />
         </parameters>
       </constructor>
-      <constructor cname="gdk_pixbuf_get_from_window">
+      <constructor cname="gdk_pixbuf_get_from_window" library="Library.Gdk">
         <parameters>
           <parameter type="GdkWindow*" name="window" />
           <parameter type="gint" name="src_x" />