diff --git a/backend/dev.sh b/backend/dev.sh
index 5449ab7777..0164c1940e 100755
--- a/backend/dev.sh
+++ b/backend/dev.sh
@@ -1,2 +1,3 @@
+export CORS_ALLOW_ORIGIN=http://localhost:5173/
 PORT="${PORT:-8080}"
-uvicorn open_webui.main:app --port $PORT --host 0.0.0.0 --forwarded-allow-ips '*' --reload
\ No newline at end of file
+uvicorn open_webui.main:app --port $PORT --host 0.0.0.0 --forwarded-allow-ips '*' --reload