diff --git a/WELAVerboseSecMsg.psm1 b/WELAVerboseSecMsg.psm1
index c004d5ea..afcf0f9e 100644
--- a/WELAVerboseSecMsg.psm1
+++ b/WELAVerboseSecMsg.psm1
@@ -230,6 +230,10 @@ System
     - Default settings: Sucess, Failure
     - Recommended settings: Success and Failure
 "@
+
+    # 変数展開を有効にする
+    $expandedMsg = $ExecutionContext.InvokeCommand.ExpandString($msg)
+
     # 変数部分を色付きで出力
     $coloredMsg = $msg -replace '\$(\w+)', { param($match) "`e[31m$match`e[0m" }
     Write-Host $coloredMsg