diff --git a/m4/Makefile.am b/m4/Makefile.am
index 589f6f9..12a867c 100644
--- a/m4/Makefile.am
+++ b/m4/Makefile.am
@@ -1 +1 @@
-EXTRA_DIST = socklen.m4 sys_socket_h.m4 autobuild.m4
+EXTRA_DIST = autobuild.m4 ax_cc_for_build.m4 gpg-error.m4 socklen.m4