diff --git a/scripts/on_sd_start.sh b/scripts/on_sd_start.sh
index 291d920d..b4d20e2a 100755
--- a/scripts/on_sd_start.sh
+++ b/scripts/on_sd_start.sh
@@ -75,6 +75,6 @@ printf "\n\nStable Diffusion is ready!\n\n"
 
 export SD_UI_PATH=`pwd`/../ui
 
-uvicorn server:app --app-dir "%SD_UI_PATH%" --port 9000 --host 0.0.0.0
+uvicorn server:app --app-dir "$SD_UI_PATH" --port 9000 --host 0.0.0.0
 
 read -p "Press any key to continue"
\ No newline at end of file