diff --git a/instructions/powershell-pester-5.instructions.md b/instructions/powershell-pester-5.instructions.md
index fb95cfc..78b81ad 100644
--- a/instructions/powershell-pester-5.instructions.md
+++ b/instructions/powershell-pester-5.instructions.md
@@ -1,5 +1,5 @@
 ---
-applyTo: '**/*.tests.ps1'
+applyTo: '**/*.Tests.ps1'
 description: 'PowerShell Pester testing best practices based on Pester v5 conventions'
 ---