diff --git a/src/functions/assertions/PesterThrow.ps1 b/src/functions/assertions/PesterThrow.ps1
index 0fc126b64..d0c7cdec3 100644
--- a/src/functions/assertions/PesterThrow.ps1
+++ b/src/functions/assertions/PesterThrow.ps1
@@ -98,7 +98,7 @@
 
     $filterOnMessage = -not [string]::IsNullOrWhitespace($ExpectedMessage)
     if ($filterOnMessage) {
-        $filters += "message like $(Format-Nicely [System.Management.Automation.WildcardPattern]::Unescape($ExpectedMessage))"
+        $filters += "message like $(Format-Nicely ([System.Management.Automation.WildcardPattern]::Unescape($ExpectedMessage)))"
         if ($actualExceptionWasThrown -and (-not (Get-DoValuesMatch $actualExceptionMessage $ExpectedMessage))) {
             $buts += "the message was $(Format-Nicely $actualExceptionMessage)"
         }