diff --git a/package/samba4/samba4.mk b/package/samba4/samba4.mk
index 7836df5beb..ade9add347 100644
--- a/package/samba4/samba4.mk
+++ b/package/samba4/samba4.mk
@@ -86,7 +86,7 @@ endef
 SAMBA4_POST_INSTALL_TARGET_HOOKS += SAMBA4_REMOVE_CTDB_TESTS
 
 define SAMBA4_CONFIGURE_CMDS
-	cp package/samba4/samba4-cache.txt $(@D)/cache.txt;
+	$(INSTALL) -m 0644 package/samba4/samba4-cache.txt $(@D)/cache.txt;
 	echo 'Checking uname machine type: $(BR2_ARCH)' >>$(@D)/cache.txt;
 	(cd $(@D); \
 		PYTHON_CONFIG="$(STAGING_DIR)/usr/bin/python-config" \