diff --git a/rockspec/power_widget-0.4.0-1.rockspec b/rockspec/power_widget-0.4.0-1.rockspec
new file mode 100644
index 0000000..38b40df
--- /dev/null
+++ b/rockspec/power_widget-0.4.0-1.rockspec
@@ -0,0 +1,27 @@
+package = "power_widget"
+version = "0.4.0-1"
+source = {
+   url = "git://github.com/stefano-m/awesome-power_widget",
+   tag = "v0.4.0"
+}
+description = {
+   summary = "A Power widget for the Awesome Window Manager",
+   detailed = [[
+    Monitor your power devices in Awesome with UPower and DBus.
+    ]],
+   homepage = "https://github.com/stefano-m/awesome-power_widget",
+   license = "GPL v3"
+}
+supported_platforms = {
+   "linux"
+}
+dependencies = {
+   "lua >= 5.2",
+   "upower_dbus >= 0.3.0, < 0.4"
+}
+build = {
+   type = "builtin",
+   modules = {
+      power_widget = "power_widget.lua"
+   }
+}