diff --git a/include/sbi/riscv_encoding.h b/include/sbi/riscv_encoding.h
index 88843014..b0f08c87 100644
--- a/include/sbi/riscv_encoding.h
+++ b/include/sbi/riscv_encoding.h
@@ -312,8 +312,6 @@
 
 /* Supervisor Trap Setup */
 #define CSR_SSTATUS			0x100
-#define CSR_SEDELEG			0x102
-#define CSR_SIDELEG			0x103
 #define CSR_SIE				0x104
 #define CSR_STVEC			0x105
 #define CSR_SCOUNTEREN			0x106