diff --git a/src/File/FileExcluder.php b/src/File/FileExcluder.php
index 7ebb938302..ba314cbb67 100644
--- a/src/File/FileExcluder.php
+++ b/src/File/FileExcluder.php
@@ -50,7 +50,7 @@ final class FileExcluder
 	 * @param string[] $analyseExcludes
 	 */
 	public function __construct(
-		FileHelper $fileHelper,
+		private FileHelper $fileHelper,
 		array $analyseExcludes,
 	)
 	{
@@ -89,6 +89,8 @@ public function __construct(
 
 	public function isExcludedFromAnalysing(string $file): bool
 	{
+		$file = $this->fileHelper->normalizePath($file);
+
 		foreach ($this->literalAnalyseExcludes as $exclude) {
 			if (str_starts_with($file, $exclude)) {
 				return true;
diff --git a/tests/PHPStan/File/FileExcluderTest.php b/tests/PHPStan/File/FileExcluderTest.php
index 860b779e75..3c2d150290 100644
--- a/tests/PHPStan/File/FileExcluderTest.php
+++ b/tests/PHPStan/File/FileExcluderTest.php
@@ -64,7 +64,7 @@ public function dataExcludeOnWindows(): array
 			],
 			[
 				__DIR__ . '\data\parse-error.php',
-				['tests/PHPStan/File/data/*'],
+				['*/tests/PHPStan/File/data/*'],
 				true,
 			],
 			[