diff --git a/arch/risc-v/src/common/supervisor/Make.defs b/arch/risc-v/src/common/supervisor/Make.defs
index 21b42782d8f..e3125b0cef4 100644
--- a/arch/risc-v/src/common/supervisor/Make.defs
+++ b/arch/risc-v/src/common/supervisor/Make.defs
@@ -21,7 +21,7 @@
 # If the NuttX kernel runs in S-mode
 
 CMN_ASRCS += riscv_dispatch_syscall.S
-CMN_CSRCS += riscv_sbi.c riscv_perform_syscall.c
+CMN_CSRCS += riscv_perform_syscall.c
 CMN_CSRCS += riscv_percpu.c
 
 INCLUDES += ${shell $(INCDIR) "$(CC)" $(ARCH_SRCDIR)$(DELIM)common$(DELIM)supervisor}