diff --git a/Scripts/speak-english.ps1 b/Scripts/speak-english.ps1
index 1f74e066..4f269e66 100755
--- a/Scripts/speak-english.ps1
+++ b/Scripts/speak-english.ps1
@@ -3,6 +3,7 @@
 	Speaks text with an English text-to-speech voice
 .DESCRIPTION
 	This scripts speaks the given text with an English text-to-speech (TTS) voice.
+	Requires that an English TTS voice is installed.
 .PARAMETER text
 	Specifies the text to speak
 .EXAMPLE