diff --git a/include/osmocom/gsm/prim.h b/include/osmocom/gsm/prim.h
index e7a60e3..045e353 100644
--- a/include/osmocom/gsm/prim.h
+++ b/include/osmocom/gsm/prim.h
@@ -16,4 +16,6 @@
 	SAP_BSSGP_PFM,
 
 	SAP_NS,
+
+	SAP_BSSGP_RIM,
 };