diff --git a/modules/lang/fsharp/doctor.el b/modules/lang/fsharp/doctor.el
new file mode 100644
index 000000000..c949c5b74
--- /dev/null
+++ b/modules/lang/fsharp/doctor.el
@@ -0,0 +1,4 @@
+;;; lang/fsharp/doctor.el -*- lexical-binding: t; -*-
+
+(unless (-any #'fsharp-mode--executable-find '("fsharpc" "fsc"))
+  (warn! "Cannot find the F# compiler. Most features will not work."))