diff --git a/openbsc/src/gsm_04_08.c b/openbsc/src/gsm_04_08.c
index c1b438e..7bf30e7 100644
--- a/openbsc/src/gsm_04_08.c
+++ b/openbsc/src/gsm_04_08.c
@@ -54,6 +54,7 @@
 #include <openbsc/ussd.h>
 #include <openbsc/silent_call.h>
 #include <openbsc/bsc_api.h>
+#include <openbsc/osmo_msc.h>
 
 void *tall_locop_ctx;
 void *tall_authciphop_ctx;