diff --git a/README.md b/README.md
index 8537621..ca530ce 100644
--- a/README.md
+++ b/README.md
@@ -354,12 +354,11 @@ Run tests using .\tests\pre-commit.ps1 which accepts the following parameters:
 -   `kind`: Run tests of this kind
 -   `tag`: Run tests tagged with this marker (currently `higher` or `lower`)
 -   `num`: Run this number of tests
+-   `log`: Write summary log file
 
-Run tests from repository root in a subshell like so:
+Run tests from repository root in a subshell and write logs, like so:
 
-`powershell .\tests\pre-commit.ps1 -k "potato" -t "higher"`
-
-Results will be logged and summary file written.
+`powershell .\tests\pre-commit.ps1 -k "potato" -t "higher" -log`
 
 ### Official Documentation
 
diff --git a/tests/pre-commit.ps1 b/tests/pre-commit.ps1
index 4ef36ee..b8370f7 100644
--- a/tests/pre-commit.ps1
+++ b/tests/pre-commit.ps1
@@ -3,7 +3,7 @@ Import-Module .\lib\Voicemeeter.psm1
 
 Function ParseLog {
     Param([String]$logfile)
-    $summary_file = "_summary.log"
+    $summary_file = Join-Path $PSScriptRoot "_summary.log"
     if (Test-Path $summary_file) { Clear-Content $summary_file }
 
     $PASSED_PATTERN = "^PassedCount\s+:\s(\d+)"
@@ -57,7 +57,7 @@ function main() {
         $ifNotBanana = $vmr.kind.name -ne "banana"
         $ifNotPotato = $vmr.kind.name -ne "potato"
 
-        $logfile = "_results.log"
+        $logfile = Join-Path $PSScriptRoot "_results.log"
         if (Test-Path $logfile) { Clear-Content $logfile }
 
         1..$num | ForEach-Object {