diff --git a/include/arch/aarch64/arch.h b/include/arch/aarch64/arch.h
index 58abd44..8663ab8 100644
--- a/include/arch/aarch64/arch.h
+++ b/include/arch/aarch64/arch.h
@@ -119,6 +119,7 @@
 #define MPAMVPM7_EL2		S3_4_C10_C6_7
 #define MPAMVPMV_EL2		S3_4_C10_C4_1
 #define TRFCR_EL2		S3_4_C1_C2_1
+#define VNCR_EL2		S3_4_C2_C2_0
 #define PMSCR_EL2		S3_4_C9_C9_0
 #define TFSR_EL2		S3_4_C5_C6_0
 #define CONTEXTIDR_EL2		S3_4_C13_C0_1