diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h
index 4dd7734cede4..42a40ad3fb62 100644
--- a/include/uapi/linux/psci.h
+++ b/include/uapi/linux/psci.h
@@ -69,8 +69,6 @@
 #define PSCI_1_1_FN64_SYSTEM_RESET2		PSCI_0_2_FN64(18)
 #define PSCI_1_1_FN64_MEM_PROTECT_CHECK_RANGE	PSCI_0_2_FN64(20)
 
-#define PSCI_1_1_FN64_MEM_PROTECT		PSCI_0_2_FN64(19)
-
 /* PSCI v0.2 power state encoding for CPU_SUSPEND function */
 #define PSCI_0_2_POWER_STATE_ID_MASK		0xffff
 #define PSCI_0_2_POWER_STATE_ID_SHIFT		0