diff --git a/libs/ui/KisDocument.cpp b/libs/ui/KisDocument.cpp
--- a/libs/ui/KisDocument.cpp
+++ b/libs/ui/KisDocument.cpp
@@ -1030,16 +1030,17 @@
         // Never saved?
 #ifdef Q_OS_WIN
         // On Windows, use the temp location (https://bugs.kde.org/show_bug.cgi?id=314921)
-        retval = QString("%1/.%2-%3-%4-autosave%5").arg(QDir::tempPath()).arg("krita").arg(qApp->applicationPid()).arg(objectName()).arg(extension);
+       retval = QString("%1%2.%3-%4-%5-autosave%6").arg(QDir::tempPath()).arg(QDir::separator()).arg("krita").arg(qApp->applicationPid()).arg(objectName()).arg(extension);
+
 #else
         // On Linux, use a temp file in $HOME then. Mark it with the pid so two instances don't overwrite each other's autosave file
-        retval = QString("%1/.%2-%3-%4-autosave%5").arg(QDir::homePath()).arg("krita").arg(qApp->applicationPid()).arg(objectName()).arg(extension);
+        retval = QString("%1%2.%3-%4-%5-autosave%6").arg(QDir::homePath()).arg(QDir::separator()).arg("krita").arg(qApp->applicationPid()).arg(objectName()).arg(extension);
 #endif
     } else {
         QFileInfo fi(path);
         QString dir = fi.absolutePath();
         QString filename = fi.fileName();
-        retval = QString("%1.%2-autosave%3").arg(dir).arg(filename).arg(extension);
+        retval = QString("%1%2.%3-autosave%4").arg(dir).arg(QDir::separator()).arg(filename).arg(extension);
     }
     return retval;
 }