diff --git a/part/arkviewer.h b/part/arkviewer.h
--- a/part/arkviewer.h
+++ b/part/arkviewer.h
@@ -47,6 +47,7 @@
     bool viewInInternalViewer(const QString& fileName, const QMimeType& mimeType);
 
     QPointer<KParts::ReadOnlyPart> m_part;
+    QString m_fileName;
 };
 
 #endif // ARKVIEWER_H
diff --git a/part/arkviewer.cpp b/part/arkviewer.cpp
--- a/part/arkviewer.cpp
+++ b/part/arkviewer.cpp
@@ -69,12 +69,11 @@
 
         // #261785: this preview dialog is not modal, so we need to delete
         //          the previewed file ourselves when the dialog is closed;
-        const QString previewedFilePath(m_part.data()->url().toDisplayString(QUrl::PreferLocalFile));
 
         m_part.data()->closeUrl();
 
-        if (!previewedFilePath.isEmpty()) {
-            QFile::remove(previewedFilePath);
+        if (!m_fileName.isEmpty()) {
+            QFile::remove(m_fileName);
         }
     }
 
@@ -204,6 +203,7 @@
 
     m_part.data()->openUrl(QUrl::fromLocalFile(fileName));
     m_part.data()->widget()->setFocus();
+    m_fileName = fileName;
 
     return true;
 }