diff --git a/whatsapp_bridge/Dockerfile b/whatsapp_bridge/Dockerfile
index fafee32..cf33619 100644
--- a/whatsapp_bridge/Dockerfile
+++ b/whatsapp_bridge/Dockerfile
@@ -1,4 +1,4 @@
-ARG BUILD_FROM
+ARG BUILD_FROM=homeassistant/amd64-base-alpine:3.19
 FROM $BUILD_FROM
 
 # System-Abhängigkeiten