diff --git a/Scripts/write-red.ps1 b/Scripts/write-red.ps1
index 8ac6a262..0deb3d0d 100755
--- a/Scripts/write-red.ps1
+++ b/Scripts/write-red.ps1
@@ -11,7 +11,7 @@
 	Author: Markus Fleschutz / License: CC0
 #>
 
-param($Text = "")
+param([string]$Text = "")
 if ($Text -eq "" ) { $Text = read-host "Enter the text to write" }
 
 write-host -foregroundcolor red "$Text"