diff --git a/include/drivers/arm/gicv3.h b/include/drivers/arm/gicv3.h
index 973a58b..5efefb6 100644
--- a/include/drivers/arm/gicv3.h
+++ b/include/drivers/arm/gicv3.h
@@ -303,6 +303,8 @@
 #define GITS_CTLR_ENABLED_BIT		BIT_32(0)
 #define GITS_CTLR_QUIESCENT_BIT		BIT_32(1)
 
+#define GITS_TYPER_VSGI			BIT_64(39)
+
 #ifndef __ASSEMBLER__
 
 #include <stdbool.h>