diff --git a/inc/Registers.h b/inc/Registers.h
index 63ec772..12d9cb1 100644
--- a/inc/Registers.h
+++ b/inc/Registers.h
@@ -36,6 +36,7 @@
 #define CSR_MIE (0x304)
 #define CSR_MTVEC (0x305)
 #define CSR_MCOUNTEREN (0x306)
+#define CSR_MSTATUSH (0x310)
 
 #define CSR_MSCRATCH (0x340)
 #define CSR_MEPC (0x341)