diff --git a/class/cron_importzugferd.class.php b/class/cron_importzugferd.class.php
index 0c9262f..521acdb 100755
--- a/class/cron_importzugferd.class.php
+++ b/class/cron_importzugferd.class.php
@@ -598,7 +598,17 @@ class CronImportZugferd
             }
 
             if (is_dir($targetFolder) && is_writable($targetFolder)) {
-                $targetPath = $targetFolder . '/' . $prefix . date('Y-m-d_His') . '_' . basename($file);
+                // Originalen Dateinamen beibehalten, bei Namenskollision Zaehler anhaengen
+                $baseName = basename($file);
+                $targetPath = $targetFolder . '/' . $baseName;
+                if (file_exists($targetPath)) {
+                    $pathInfo = pathinfo($baseName);
+                    $counter = 1;
+                    do {
+                        $targetPath = $targetFolder . '/' . $pathInfo['filename'] . '_' . $counter . '.' . $pathInfo['extension'];
+                        $counter++;
+                    } while (file_exists($targetPath));
+                }
 
                 if (@rename($file, $targetPath)) {
                     dol_syslog("CronImportZugferd: Moved file to: " . $targetPath, LOG_INFO);