diff --git a/scripts/gen-btf.sh b/scripts/gen-btf.sh
index 06c6d8becaa2..12244dbe097c 100755
--- a/scripts/gen-btf.sh
+++ b/scripts/gen-btf.sh
@@ -96,7 +96,7 @@ gen_btf_o()
 	# deletes all symbols including __start_BTF and __stop_BTF, which will
 	# be redefined in the linker script.
 	info OBJCOPY "${btf_data}"
-	echo "" | ${CC} ${CLANG_FLAGS} -c -x c -o ${btf_data} -
+	echo "" | ${CC} ${CLANG_FLAGS} ${KBUILD_CFLAGS} -c -x c -o ${btf_data} -
 	${OBJCOPY} --add-section .BTF=${ELF_FILE}.BTF \
 		--set-section-flags .BTF=alloc,readonly ${btf_data}
 	${OBJCOPY} --only-section=.BTF --strip-all ${btf_data}