diff --git a/gdk/Makefile.am b/gdk/Makefile.am
index 67224bc1e2..689ee52057 100644
--- a/gdk/Makefile.am
+++ b/gdk/Makefile.am
@@ -112,6 +112,7 @@ gdk_h_sources =					\
 gdk_private_headers = 				\
 	gdk-private.h				\
 	gdkapplaunchcontextprivate.h		\
+	gdkconstructor.h		\
 	gdkcursorprivate.h			\
 	gdkdevicemanagerprivate.h		\
 	gdkdeviceprivate.h			\