diff --git a/include/sbi/sbi_ecall_interface.h b/include/sbi/sbi_ecall_interface.h
index 46a813e8..a7dab8c3 100644
--- a/include/sbi/sbi_ecall_interface.h
+++ b/include/sbi/sbi_ecall_interface.h
@@ -456,8 +456,9 @@ enum sbi_sse_state {
 #define SBI_ERR_BAD_RANGE			-11
 #define SBI_ERR_TIMEOUT				-12
 #define SBI_ERR_IO				-13
+#define SBI_ERR_DENIED_LOCKED			-14
 
-#define SBI_LAST_ERR				SBI_ERR_BAD_RANGE
+#define SBI_LAST_ERR				SBI_ERR_DENIED_LOCKED
 
 /* clang-format on */
 
diff --git a/include/sbi/sbi_error.h b/include/sbi/sbi_error.h
index b40b3319..febd596e 100644
--- a/include/sbi/sbi_error.h
+++ b/include/sbi/sbi_error.h
@@ -29,6 +29,7 @@
 #define SBI_ETIMEOUT		SBI_ERR_TIMEOUT
 #define SBI_ETIMEDOUT		SBI_ERR_TIMEOUT
 #define SBI_EIO			SBI_ERR_IO
+#define SBI_EDENIED_LOCKED	SBI_ERR_DENIED_LOCKED
 
 #define SBI_ENODEV		-1000
 #define SBI_ENOSYS		-1001