diff --git a/docker_build.sh b/docker_build.sh
index ec4b1f3..de90001 100755
--- a/docker_build.sh
+++ b/docker_build.sh
@@ -1,7 +1,6 @@
 #!/bin/bash
 
-PORT=${1:-8824}
 SCRIPT_PATH=$(readlink -f ${BASH_SOURCE:-$0})
-SMARTHOME_PATH=$(dirname $(dirname $SCRIPT_PATH))
+SCRIPT_DIR=$(dirname $SCRIPT_PATH)
 
-DOCKER_BUILDKIT=1 docker build -t appdaemon:custom $SMARTHOME_PATH/appdaemon
+DOCKER_BUILDKIT=1 docker build -t appdaemon:custom -f $SCRIPT_DIR/.devcontainer/Dockerfile $SCRIPT_DIR