diff --git a/build.ps1 b/build.ps1
new file mode 100644
index 0000000..835c3b2
--- /dev/null
+++ b/build.ps1
@@ -0,0 +1,5 @@
+cd extension
+del ..\ShinigamiEyes.xpi -ErrorAction Ignore
+7z a ..\ShinigamiEyes.xpi * -mm=Copy
+cd ..
+