diff --git a/psalm.xml b/psalm.xml
index dac8635b5be..009c59c7857 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -77,6 +77,7 @@
 		<file name="build/stubs/ftp.php"/>
 		<file name="build/stubs/pcntl.php"/>
 		<file name="build/stubs/zip.php"/>
+		<file name="3rdparty/sabre/uri/lib/functions.php" />
 	</stubs>
 	<issueHandlers>
 		<UndefinedClass>