diff --git a/build.sh b/build.sh
index eb6e440c..e3b154ed 100755
--- a/build.sh
+++ b/build.sh
@@ -1,5 +1,21 @@
 #!/bin/sh
 
+while getopts "d" flag; do
+ case $flag in
+   d) # Handle the -d flag
+   # run docker
+   echo "Running in Docker..."
+    # run docker
+    docker run --rm -it -v `pwd`:/app --name sencha ghcr.io/bwbohl/sencha-cmd:latest /bin/bash -c "./build.sh testing; exit"
+   exit
+   ;;   
+   \?)
+   # Handle invalid options
+   ;;
+ esac
+done
+
+
 # cleaning the build dir
 sencha ant clean
 
@@ -10,4 +26,7 @@ sencha app build $1
 ant build-plus
 
 # build xar
-ant xar
\ No newline at end of file
+ant xar
+
+exit
+