diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h
index fdcf400a..ff682fb4 100644
--- a/include/sbi/sbi_hart.h
+++ b/include/sbi/sbi_hart.h
@@ -83,6 +83,8 @@ enum sbi_hart_extensions {
 	SBI_HART_EXT_SSSTATEEN,
 	/** Hart has Xsfcflushdlone extension */
 	SBI_HART_EXT_XSIFIVE_CFLUSH_D_L1,
+	/** Hart has Xsfcease extension */
+	SBI_HART_EXT_XSIFIVE_CEASE,
 
 	/** Maximum index of Hart extension */
 	SBI_HART_EXT_MAX,
diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c
index 4159dff5..de135818 100644
--- a/lib/sbi/sbi_hart.c
+++ b/lib/sbi/sbi_hart.c
@@ -716,6 +716,7 @@ const struct sbi_hart_ext_data sbi_hart_ext[] = {
 	__SBI_HART_EXT_DATA(ssctr, SBI_HART_EXT_SSCTR),
 	__SBI_HART_EXT_DATA(ssstateen, SBI_HART_EXT_SSSTATEEN),
 	__SBI_HART_EXT_DATA(xsfcflushdlone, SBI_HART_EXT_XSIFIVE_CFLUSH_D_L1),
+	__SBI_HART_EXT_DATA(xsfcease, SBI_HART_EXT_XSIFIVE_CEASE),
 };
 
 _Static_assert(SBI_HART_EXT_MAX == array_size(sbi_hart_ext),