diff --git a/openbsc/include/openbsc/gprs_ns_frgre.h b/openbsc/include/openbsc/gprs_ns_frgre.h
new file mode 100644
index 000000000..abcd43ffb
--- /dev/null
+++ b/openbsc/include/openbsc/gprs_ns_frgre.h
@@ -0,0 +1,6 @@
+#ifndef _GPRS_NS_FRGRE_H
+#define _GPRS_NS_FRGRE_H
+
+int gprs_ns_frgre_sendmsg(struct gprs_nsvc *nsvc, struct msgb *msg);
+
+#endif
diff --git a/openbsc/src/gprs/gprs_ns.c b/openbsc/src/gprs/gprs_ns.c
index 4846b6473..3d115c114 100644
--- a/openbsc/src/gprs/gprs_ns.c
+++ b/openbsc/src/gprs/gprs_ns.c
@@ -69,6 +69,7 @@
 #include <openbsc/signal.h>
 #include <openbsc/gprs_ns.h>
 #include <openbsc/gprs_bssgp.h>
+#include <openbsc/gprs_ns_frgre.h>
 #include <openbsc/socket.h>
 
 static const struct tlv_definition ns_att_tlvdef = {