diff --git a/openair3/NAS/COMMON/IES/FGSMobileIdentity.c b/openair3/NAS/COMMON/IES/FGSMobileIdentity.c
index bd98cc090a..98f0b5017a 100644
--- a/openair3/NAS/COMMON/IES/FGSMobileIdentity.c
+++ b/openair3/NAS/COMMON/IES/FGSMobileIdentity.c
@@ -31,7 +31,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
-
+#include <stdbool.h>
 
 #include "TLVEncoder.h"
 #include "TLVDecoder.h"