diff --git a/simple_language_plugin/build.gradle b/simple_language_plugin/build.gradle
index 86f5f6c62..f18e252ce 100644
--- a/simple_language_plugin/build.gradle
+++ b/simple_language_plugin/build.gradle
@@ -18,6 +18,8 @@ test {
   // This path value is machine-specific placeholder text.
   // Set idea.home.path to the absolute path to the intellij-community source
   // on your local machine.
+  // Use variants described in https://docs.gradle.org/current/userguide/build_environment.html
+  // for real world projects.
   systemProperty "idea.home.path", "/Users/jhake/Documents/source/comm"
 }