diff --git a/modules/lang/csharp/config.el b/modules/lang/csharp/config.el
index d68e0a0eb..2a6cf7aa6 100644
--- a/modules/lang/csharp/config.el
+++ b/modules/lang/csharp/config.el
@@ -3,6 +3,11 @@
 (use-package! csharp-mode
   :hook (csharp-mode . rainbow-delimiters-mode)
   :config
+  (when (and (file-exists-p (expand-file-name "~/.dotnet/tools/dotnet-csharpier"))
+             (file-exists-p ".config/dotnet-tools.json")
+             (eq 0 (call-process-shell-command
+                    (format "grep -q 'dotnet-csharpier' %s" (expand-file-name ".config/dotnet-tools.json")) nil nil)))
+    (set-formatter! 'csharpier '("dotnet" "tool" "run" "dotnet-csharpier") :modes '(csharp-mode)))
   (set-electric! 'csharp-mode :chars '(?\n ?\}))
   (set-rotate-patterns! 'csharp-mode
     :symbols '(("public" "protected" "private")
diff --git a/modules/lang/csharp/doctor.el b/modules/lang/csharp/doctor.el
index e11ceb459..f816be957 100644
--- a/modules/lang/csharp/doctor.el
+++ b/modules/lang/csharp/doctor.el
@@ -9,3 +9,10 @@
 (assert! (or (not (modulep! +tree-sitter))
              (modulep! :tools tree-sitter))
          "This module requires (:tools tree-sitter)")
+
+(when (modulep! :editor format)
+  (unless (and (file-exists-p (expand-file-name "~/.dotnet/tools/dotnet-csharpier"))
+               (file-exists-p ".config/dotnet-tools.json")
+               (eq 0 (call-process-shell-command
+                      (format "grep -q 'dotnet-csharpier' %s" (expand-file-name ".config/dotnet-tools.json")) nil nil)))
+    (warn! "csharpier is not installed or setup as a local tool. Please see the module README. \nOtherwise, formatting will be disabled.")))