diff --git a/psalm.xml b/psalm.xml
index 6fc76806f39482aca3539c97b6631522916acbf8..2d2bee768a5f5bd5dedec3e76e9ca3532d05ea51 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -48,6 +48,8 @@
         <UnresolvableInclude>
             <errorLevel type="suppress">
                 <file name="bin/*.php" />
+                <file name="lib/SimpleSAML/Configuration.php" />
+                <file name="lib/SimpleSAML/Metadata/MetaDataStorageHandlerFlatFile.php" />
                 <file name="lib/SimpleSAML/Module.php" />
                 <file name="lib/SimpleSAML/XHTML/Template.php" />
                 <file name="modules/core/lib/Auth/Process/AttributeMap.php" />