diff --git a/script/entrypoint.sh b/script/entrypoint.sh
index 166f4837..f7faba34 100755
--- a/script/entrypoint.sh
+++ b/script/entrypoint.sh
@@ -100,8 +100,8 @@ if [ "$AIRFLOW__CORE__EXECUTOR" = "CeleryExecutor" ]; then
   else
     # Derive useful variables from the AIRFLOW__ variables provided explicitly by the user
     REDIS_ENDPOINT=$(echo -n "$AIRFLOW__CELERY__BROKER_URL" | cut -d '/' -f3 | sed -e 's,.*@,,')
-    REDIS_HOST=$(echo -n "$POSTGRES_ENDPOINT" | cut -d ':' -f1)
-    REDIS_PORT=$(echo -n "$POSTGRES_ENDPOINT" | cut -d ':' -f2)
+    REDIS_HOST=$(echo -n "$REDIS_ENDPOINT" | cut -d ':' -f1)
+    REDIS_PORT=$(echo -n "$REDIS_ENDPOINT" | cut -d ':' -f2)
   fi
 
   wait_for_port "Redis" "$REDIS_HOST" "$REDIS_PORT"