diff --git a/openair3/COMMON/messages_types.h b/openair3/COMMON/messages_types.h
index 56a16da554..f91881bf11 100644
--- a/openair3/COMMON/messages_types.h
+++ b/openair3/COMMON/messages_types.h
@@ -38,5 +38,7 @@
 #include "sgw_lite_messages_types.h"
 #include "udp_messages_types.h"
 #include "mme_app_messages_types.h"
+#include "m2ap_messages_types.h"
+
 
 #endif /* MESSAGES_TYPES_H_ */