diff --git a/include/lib/psa/psa_manifest/sid.h b/include/lib/psa/psa_manifest/sid.h
index 580a4cf..bbd2e22 100644
--- a/include/lib/psa/psa_manifest/sid.h
+++ b/include/lib/psa/psa_manifest/sid.h
@@ -14,4 +14,7 @@
 /******** PSA_SP_MEASURED_BOOT ********/
 #define RSS_MEASURED_BOOT_HANDLE			(0x40000110U)
 
+/******** PSA_SP_DELAGATED_ATTESTATION ********/
+#define RSS_DELEGATED_SERVICE_HANDLE			(0x40000111U)
+
 #endif /* PSA_MANIFEST_SID_H */