diff --git a/kioslave/thumbnail/thumbnail.cpp b/kioslave/thumbnail/thumbnail.cpp
index aa4004f5..ee9435bb 100644
--- a/kioslave/thumbnail/thumbnail.cpp
+++ b/kioslave/thumbnail/thumbnail.cpp
@@ -56,6 +56,7 @@
 #include <config-workspace.h> // For HAVE_NICE
 #include <kio/thumbcreator.h>
 #include <kio/thumbsequencecreator.h>
+#include <kio/netaccess.h>
 #include <kconfiggroup.h>
 
 #include <iostream>
@@ -593,7 +594,10 @@ bool ThumbnailProtocol::createSubThumbnail(QImage& thumbnail, const QString& fil
         int cacheSize = 0;
         // NOTE: make sure the algorithm and name match those used in kdelibs/kio/kio/previewjob.cpp
         const QByteArray hash = QFile::encodeName(fileName.url()).toHex();
-        const QString thumbName = hash + thumbExt;
+        KIO::UDSEntry thumbEntry;
+        KIO::NetAccess::stat(fileName, thumbEntry, nullptr);
+        const QString modTime = QString::number(thumbEntry.numberValue(KIO::UDSEntry::UDS_MODIFICATION_TIME));
+        const QString thumbName = hash + modTime + thumbExt;
         if (m_thumbBasePath.isEmpty()) {
             m_thumbBasePath = QDir::homePath() + "/.thumbnails/";
             KStandardDirs::makeDir(m_thumbBasePath + "normal/", 0700);