diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index 69ea659..22f1e1d 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -95,6 +95,7 @@
 sysroot: sysroot/$(ARCH)/include
 
 sysroot/$(ARCH)/include:
+	$(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot
 	$(QUIET_MKDIR)mkdir -p sysroot
 	$(Q)$(MAKE) -C ../../../include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone
 	$(Q)mv sysroot/sysroot sysroot/$(ARCH)
@@ -133,3 +134,5 @@
 	$(Q)rm -rf initramfs
 	$(call QUIET_CLEAN, run.out)
 	$(Q)rm -rf run.out
+
+.PHONY: sysroot/$(ARCH)/include