diff --git a/openair-cn/OAISIM_MME/Makefile.am b/openair-cn/OAISIM_MME/Makefile.am
index 3596a68f46..86e42e9a3d 100644
--- a/openair-cn/OAISIM_MME/Makefile.am
+++ b/openair-cn/OAISIM_MME/Makefile.am
@@ -5,6 +5,8 @@ AM_CFLAGS = @ADD_CFLAGS@ \
 	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/include	\
 	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/shared	\
 	-I$(top_srcdir)/SCTP				\
+	-I$(top_srcdir)/NAS/EURECOM-NAS/src/api/network	\
+	-I$(top_srcdir)/NAS/EURECOM-NAS/src/include	\
 	-I$(top_srcdir)/INTERTASK_INTERFACE		\
 	-I$(top_srcdir)/SGI				\
 	-I$(top_srcdir)/MME_APP				\
diff --git a/openair-cn/OAI_SGW/Makefile.am b/openair-cn/OAI_SGW/Makefile.am
index 892ad6f51c..14a4455ec6 100644
--- a/openair-cn/OAI_SGW/Makefile.am
+++ b/openair-cn/OAI_SGW/Makefile.am
@@ -4,6 +4,8 @@ AM_CFLAGS = @ADD_CFLAGS@ \
 	-I$(top_srcdir)/GTPV1-U				\
 	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/include	\
 	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/shared		\
+	-I$(top_srcdir)/NAS/EURECOM-NAS/src/api/network	\
+	-I$(top_srcdir)/NAS/EURECOM-NAS/src/include	\
 	-I$(top_srcdir)/INTERTASK_INTERFACE		\
 	-I$(top_srcdir)/S11				\
 	-I$(top_srcdir)/SGI				\