diff --git a/src/frontends/xforms/forms/Makefile.am b/src/frontends/xforms/forms/Makefile.am
index 381ccf9655..7d05df53d7 100644
--- a/src/frontends/xforms/forms/Makefile.am
+++ b/src/frontends/xforms/forms/Makefile.am
@@ -1,9 +1,48 @@
 include $(top_srcdir)/config/common.am
 
-EXTRA_DIST = *.fd *.patch fdfixc.sed fdfixh.sed fdfix.sh makefile.old README
+EXTRA_DIST = $(SRCS) form_document.C.patch form_ert.C.patch form_filedialog.C.patch fdfixc.sed fdfixh.sed fdfix.sh makefile.old README
 
 updatesrc:
 	@echo Note:
 	@echo   To update the C files generated from XForms fd files
 	@echo   You shoul go to the source dir and do a
 	@echo        make -f makefile.old updatesrc
+
+SRCS =  form_aboutlyx.fd \
+	form_bibitem.fd \
+	form_bibtex.fd \
+	form_bibtex.fd \
+	form_browser.fd \
+	form_character.fd \
+	form_citation.fd \
+	form_document.fd \
+	form_error.fd \
+	form_ert.fd \
+	form_external.fd \
+	form_filedialog.fd \
+	form_float.fd \
+	form_forks.fd \
+	form_graphics.fd \
+	form_include.fd \
+	form_index.fd \
+	form_maths_deco.fd \
+	form_maths_delim.fd \
+	form_maths_matrix.fd \
+	form_maths_panel.fd \
+	form_maths_space.fd \
+	form_maths_style.fd \
+	form_minipage.fd \
+	form_paragraph.fd \
+	form_preamble.fd \
+	form_preferences.fd \
+	form_print.fd \
+	form_ref.fd \
+	form_search.fd \
+	form_sendto.fd \
+	form_spellchecker.fd \
+	form_tabular.fd \
+	form_tabular_create.fd \
+	form_texinfo.fd \
+	form_thesaurus.fd \
+	form_toc.fd \
+	form_url.fd