diff --git a/build/generate-registry-annotations.php b/build/generate-registry-annotations.php
index f7dce3c50..11e15a3c6 100644
--- a/build/generate-registry-annotations.php
+++ b/build/generate-registry-annotations.php
@@ -91,7 +91,7 @@ foreach(new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($argv[1],
 		throw new \RuntimeException("Failed to get contents of $file");
 	}
 
-	if(preg_match("/^namespace (.+);$/m", $contents, $matches) !== 1 || preg_match('/^((final|abstract)\s+)?class /m', $contents) !== 1){
+	if(preg_match("/(*ANYCRLF)^namespace (.+);$/m", $contents, $matches) !== 1 || preg_match('/(*ANYCRLF)^((final|abstract)\s+)?class /m', $contents) !== 1){
 		continue;
 	}
 	$shortClassName = basename($file, ".php");
@@ -101,7 +101,7 @@ foreach(new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($argv[1],
 	}
 	$reflect = new \ReflectionClass($className);
 	$docComment = $reflect->getDocComment();
-	if($docComment === false || preg_match("/^\s*\*\s*@generate-registry-docblock$/m", $docComment) !== 1){
+	if($docComment === false || preg_match("/(*ANYCRLF)^\s*\*\s*@generate-registry-docblock$/m", $docComment) !== 1){
 		continue;
 	}
 	echo "Found registry in $file\n";