diff --git a/tools/catalyst-auto-qemu-mips-4.conf b/tools/catalyst-auto-qemu-mips-4.conf
index 690ca4f9..f7b4921b 100644
--- a/tools/catalyst-auto-qemu-mips-4.conf
+++ b/tools/catalyst-auto-qemu-mips-4.conf
@@ -2,3 +2,4 @@
 source ${REPO_DIR}/tools/catalyst-auto-qemu-mips-common
 
 SETS=${SETS_MULTI}
+UPLOAD_KEY=/root/.ssh/id_ed25519