diff --git a/include/sbi/riscv_encoding.h b/include/sbi/riscv_encoding.h
index d137bf82..a545242a 100644
--- a/include/sbi/riscv_encoding.h
+++ b/include/sbi/riscv_encoding.h
@@ -430,6 +430,7 @@
 #define CSR_MARCHID			0xf12
 #define CSR_MIMPID			0xf13
 #define CSR_MHARTID			0xf14
+#define CSR_MCONFIGPTR			0xf15
 
 /* Machine Trap Setup */
 #define CSR_MSTATUS			0x300