diff --git a/autotests/kautosavefiletest.cpp b/autotests/kautosavefiletest.cpp
--- a/autotests/kautosavefiletest.cpp
+++ b/autotests/kautosavefiletest.cpp
@@ -80,7 +80,16 @@
 
 void KAutoSaveFileTest::test_fileStaleFiles()
 {
-    // TODO
+    QUrl normalFile = QUrl::fromLocalFile(QStringLiteral("/tmp/test directory/tîst me.txt"));
+
+    KAutoSaveFile saveFile(normalFile);
+    QVERIFY(saveFile.open(QIODevice::ReadWrite));
+    saveFile.write(QStringLiteral("testdata").toUtf8());
+    // Make sure the stale file is found
+    QVERIFY(saveFile.staleFiles(normalFile, QStringLiteral("qttest")).count() == 1);
+    saveFile.releaseLock();
+    // Make sure the stale file is deleted
+    QVERIFY(saveFile.staleFiles(normalFile, QStringLiteral("qttest")).isEmpty());
 }
 
 void KAutoSaveFileTest::test_applicationStaleFiles()
diff --git a/src/lib/io/kautosavefile.cpp b/src/lib/io/kautosavefile.cpp
--- a/src/lib/io/kautosavefile.cpp
+++ b/src/lib/io/kautosavefile.cpp
@@ -177,7 +177,7 @@
     QUrl managedFileName;
     //name.setScheme(file.mid(sepPos + 3, pathPos - sep.size() - 3));
     QByteArray encodedPath = staleFileName.midRef(pathPos+1, staleFileName.length()-pathPos-1-KAutoSaveFilePrivate::NamePadding).toLatin1();
-    managedFileName.setPath(QUrl::fromPercentEncoding(encodedPath) + QLatin1Char('/') + QFileInfo(staleFileName.left(sepPos)).fileName());
+    managedFileName.setPath(QUrl::fromPercentEncoding(encodedPath) + QLatin1Char('/') + QFileInfo(QUrl::fromPercentEncoding(staleFileName.left(sepPos).toLatin1())).fileName());
     return managedFileName;
 }