diff --git a/Dockerfile b/Dockerfile
index 5af8186..5a8aa63 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -69,6 +69,7 @@ WORKDIR /app/code/
 COPY --from=ghcr.io/astral-sh/uv:0.7.19 /uv /uvx /usr/local/bin/
 
 # Install Python
+ENV UV_PYTHON_INSTALL_DIR=/app/code/uv
 RUN mkdir /app/code/uv && uv python install -i /app/code/uv 3.13
 
 # Install Python dependencies
diff --git a/start.sh b/start.sh
index 4e07c7c..0c22c43 100755
--- a/start.sh
+++ b/start.sh
@@ -27,6 +27,7 @@ export OIDC_CLIENT_SECRET=${CLOUDRON_OIDC_CLIENT_SECRET}
 export OIDC_REDIRECT_URI="/api/oauth/openid"
 export OIDC_SERVER_APPLICATION_URL=${CLOUDRON_OIDC_AUTH_ENDPOINT}
 export ROMM_BASE_PATH=/app/data
+export UV_PYTHON_INSTALL_DIR=/app/code/uv
 
 echo "==> Starting supervisor"
 exec /usr/bin/supervisord --configuration /etc/supervisor/supervisord.conf --nodaemon -i Romm