diff --git a/deployments/se-proxy/config/default-opteesp/default_se-proxy.dts.in b/deployments/se-proxy/config/default-opteesp/default_se-proxy.dts.in
index 732bae3..902017c 100644
--- a/deployments/se-proxy/config/default-opteesp/default_se-proxy.dts.in
+++ b/deployments/se-proxy/config/default-opteesp/default_se-proxy.dts.in
@@ -16,5 +16,6 @@
 	execution-state = <0>; /* AArch64 */
 	xlat-granule = <0>; /* 4KiB */
 	messaging-method = <3>; /* Direct messaging only */
+	ns-interrupts-action = <2>; /* Non-secure interrupts are signaled */
 	elf-format = <1>;
 };