diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index 842c2f97c8..63f88e9476 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -481,6 +481,7 @@ gtk_private_h_sources =		\
 	gtkfilesystemmodel.h	\
 	gtkfontchooserprivate.h	\
 	gtkfontchooserutils.h	\
+	gtkfontchooserwidgetprivate.h \
 	gtkgestureprivate.h	\
 	gtkgesturedragprivate.h	\
 	gtkgesturelongpressprivate.h	\