diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 0000000..0d3194e
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1,2 @@
+elixir 1.14.5-otp-24
+erlang 24.3.4.17
diff --git a/lib/mix/tasks/systemd.ex b/lib/mix/tasks/systemd.ex
index 2b52af0..6dc4491 100644
--- a/lib/mix/tasks/systemd.ex
+++ b/lib/mix/tasks/systemd.ex
@@ -22,7 +22,7 @@ defmodule Mix.Tasks.Systemd do
 
     app_name = mix_config[:app]
 
-    ext_name = app_name
+    ext_name = app_name |> to_string
 
     service_name = ext_name