diff --git a/openbsc/src/transaction.c b/openbsc/src/transaction.c
index a29c07d..59414a4 100644
--- a/openbsc/src/transaction.c
+++ b/openbsc/src/transaction.c
@@ -28,6 +28,7 @@
 #include <openbsc/gsm_04_08.h>
 #include <openbsc/mncc.h>
 #include <openbsc/paging.h>
+#include <openbsc/osmo_msc.h>
 
 void *tall_trans_ctx;