diff --git a/arch/riscv/kernel/vdso_cfi/Makefile b/arch/riscv/kernel/vdso_cfi/Makefile
index 8ebd190782b0..10292498b765 100644
--- a/arch/riscv/kernel/vdso_cfi/Makefile
+++ b/arch/riscv/kernel/vdso_cfi/Makefile
@@ -23,3 +23,6 @@ $(vdso_c_objects): $(obj)/%.c: $(src)/%.c
 # Include the main VDSO Makefile which contains all the build rules and sources
 # The VDSO_CFI_BUILD variable will be passed to it to enable CFI compilation
 include $(src)/Makefile
+
+# Clean rules - remove the copied source files
+clean-files += $(notdir $(vdso_c_sources)) $(notdir $(vdso_S_sources))