diff --git a/config_sample.ps1 b/config_sample.ps1
index 0560e0f..a49ee8f 100644
--- a/config_sample.ps1
+++ b/config_sample.ps1
@@ -5,6 +5,7 @@
 # general configuration
 $InstallPath = "C:\restic"
 $ExeName = "restic.exe"
+$ResticExe = Join-Path $InstallPath $ExeName
 $GlobalParameters = @()
 $LogRetentionDays = 30
 $BackupOnMeteredNetwork = $true
@@ -63,4 +64,4 @@ $CustomActionEndSuccess = $null
 
 # Example: Invoking a script
 # $successScript = Join-Path $InstallPath "mySuccessScript.ps1"
-# $CustomActionEndSuccess = "& $successScript"
\ No newline at end of file
+# $CustomActionEndSuccess = "& $successScript"