diff --git a/build/entrypoint.sh b/build/entrypoint.sh
index f584df9..0575221 100644
--- a/build/entrypoint.sh
+++ b/build/entrypoint.sh
@@ -19,4 +19,5 @@ echo "[entrypoint] Starting initial scrape in background..."
 bash /app/run_all.sh &
 
 echo "[entrypoint] Starting combined server on port 8080..."
-exec DATA_DIR="$DATA_DIR" python3 /app/server.py
+export DATA_DIR
+exec python3 /app/server.py