diff --git a/testing/modules.md b/testing/modules.md
index eb96ccad..167af2bc 100644
--- a/testing/modules.md
+++ b/testing/modules.md
@@ -6,6 +6,8 @@ currentMenu: testing-modules
 
 Testing a Vapor app gets tricky, and requires some maneuvering of your app targets.
 
+> [WARNING] Technically this is only necessary if you plan to run your tests on Linux. You can keep your tests in the same module if you want to only run your tests from the command line using `vapor test`
+
 ## **Step 1:** Update Package.swift
 
 To start, you need to split up your Vapor project into a target called `App`, and a target called `AppLogic`. The App module will only include a `main.swift`, and your `AppLogic` will contain the actual logic for the app.