diff --git a/README.md b/README.md
index 4a04e6b8..563be2dc 100644
--- a/README.md
+++ b/README.md
@@ -383,7 +383,9 @@ object.
             <td><code>platforms</code></td>
             <td><code>List&lt;String&gt;</code></td>
             <td><code>[]</code></td>
-            <td>Platforms on which to run the tests (handled by the Dart test runner). See https://github.com/dart-lang/test#platform-selector-syntax for a full list of supported platforms.</td>
+            <td>Platforms on which to run the tests (handled by the Dart test runner). See https://github.com/dart-lang/test#platform-selector-syntax for a full list of supported platforms.
+            <strong>* Not all platforms are supported by all continuous integration servers.  Please consult your CI server's documentation for more details.</strong> 
+            </td>
         </tr>
         <tr>
             <td><code>unitTests</code></td>
@@ -462,4 +464,4 @@ Check out the source of these API methods for additional documentation.
 > In order to provide a clean API, these methods do not leverage the
 > configuration instances that the command-line interfaces do. Because of this,
 > the default usage may be different. You can access said configurations from
-> the main `package:dart_dev/dart_dev.dart` import.
\ No newline at end of file
+> the main `package:dart_dev/dart_dev.dart` import.