diff --git a/openair2/COMMON/rrc_messages_types.h b/openair2/COMMON/rrc_messages_types.h
index 816b9368952c08bfd9ffe6d01fd0ad3ce49fe100..ffe194265fd2413be9894fdfb4e384b6b7997fd7 100644
--- a/openair2/COMMON/rrc_messages_types.h
+++ b/openair2/COMMON/rrc_messages_types.h
@@ -179,7 +179,7 @@ typedef struct RrcConfigurationReq_s {
   long                    ue_TimersAndConstants_t311[MAX_NUM_CCs];
   long                    ue_TimersAndConstants_n310[MAX_NUM_CCs];
   long                    ue_TimersAndConstants_n311[MAX_NUM_CCs];
-
+  long                    ue_TransmissionMode[MAX_NUM_CCs];
 } RrcConfigurationReq;
 
 // UE: NAS -> RRC messages