diff --git a/include/osmocom/sgsn/Makefile.am b/include/osmocom/sgsn/Makefile.am
index dbbc0c6..fc4f597 100644
--- a/include/osmocom/sgsn/Makefile.am
+++ b/include/osmocom/sgsn/Makefile.am
@@ -21,6 +21,7 @@
 	gprs_sndcp_xid.h \
 	gprs_subscriber.h \
 	gprs_utils.h \
+	gtp.h \
 	gtphub.h \
 	gtp_ggsn.h \
 	gtp_mme.h \