diff --git a/modules/lang/erlang/doctor.el b/modules/lang/erlang/doctor.el
new file mode 100644
index 000000000..90ac156f9
--- /dev/null
+++ b/modules/lang/erlang/doctor.el
@@ -0,0 +1,6 @@
+;; -*- lexical-binding: t; no-byte-compile: t; -*-
+;;; lang/erlang/doctor.el
+
+(assert! (or (not (featurep! +lsp))
+             (featurep! :tools lsp))
+         "This module requires (:tools lsp)")