diff --git a/make-msys2-installer b/make-msys2-installer
index 005a1bb..38ebcf9 100644
--- a/make-msys2-installer
+++ b/make-msys2-installer
@@ -106,6 +106,7 @@ install_coursier(){
   export COURSIER_CACHE=${_newmsys}/cache/.coursier
   echo "export COURSIER_CACHE=/cache/.coursier" >> ${_newmsys}/etc/skel/.bashrc  
   export COURSIER_HOME=${_newmsys}/coursier
+  export COURSIER_BIN_DIR=${_newmsys}/coursier
   echo "export PATH=\"\$PATH:/coursier\"" >> ${_newmsys}/etc/skel/.bashrc
   echo "alias coursier=cs.bat" >> ${_newmsys}/etc/skel/.bashrc
 
@@ -124,6 +125,9 @@ setup_sbt(){
   ${COURSIER} fetch jline:jline:2.14.3
   ${COURSIER} fetch org.fusesource.jansi:jansi:1.12
   ${COURSIER} fetch --sbt-plugin org.scalameta:sbt-scalafmt:2.4.6
+  
+  echo "alias mill=mill.bat" >> ${_newmsys}/etc/skel/.bashrc
+  ${COURSIER} install mill
 }
 
 _spinal_with_tester="1.8.0"
diff --git a/test_template.sh b/test_template.sh
index caad3cd..03a155a 100644
--- a/test_template.sh
+++ b/test_template.sh
@@ -17,6 +17,7 @@ do_test(){
     export COURSIER_CACHE=${_newmsys}/cache/.coursier
     export SBT_OPTS="-Dsbt.version=${_sbt_version} -Dsbt.boot.directory=${_newmsys}/cache/.sbt/boot -Dsbt.global.base=${_newmsys}/cache/.sbt/1.0 -Dsbt.ivy.home=${_newmsys}/cache/.ivy2"
     export SBT_CMD="${SDKMAN_DIR}/candidates/sbt/current/bin/sbt ${SBT_OPTS}"
+    export MILL_CMD="${_newmsys}/coursier/mill.bat"
 
     git clone https://github.com/SpinalHDL/SpinalTemplateSbt.git
     cd SpinalTemplateSbt || exit
@@ -42,6 +43,7 @@ val scalaTest = "org.scalatest" %% "scalatest" % "3.2.14"' build.sbt
     fi
     ${SBT_CMD} -Dsbt.offline=true "test" || exit
 
+    ${MILL_CMD} _.compile || exit
     cd ..
 }