diff --git a/tests/Unit/Helper/BacktraceIgnoreMatcherTest.php b/tests/Unit/Helper/BacktraceIgnoreMatcherTest.php
index 980d572c4..ae0fbfe75 100644
--- a/tests/Unit/Helper/BacktraceIgnoreMatcherTest.php
+++ b/tests/Unit/Helper/BacktraceIgnoreMatcherTest.php
@@ -34,7 +34,7 @@ public function testFileIgnorance(): void
 
         $backtrace[2] = $backtrace[0];
 
-        $this->assertTrue(BacktraceIgnoreMatcher::isIgnoredByFile($backtrace, [$file]));
+        $this->assertTrue(BacktraceIgnoreMatcher::isIgnoredByFile($backtrace, [preg_quote($file)]));
         $this->assertTrue(
             BacktraceIgnoreMatcher::isIgnoredByFile(
                 $backtrace,