diff --git a/worker.cpp b/worker.cpp
index d6d4156..5de4171 100644
--- a/worker.cpp
+++ b/worker.cpp
@@ -1001,9 +1001,16 @@ bool Worker::syncCustomerRepositoryAndFS() {
             progress += 5;
             setProgress(progress);
             if (!error) {
-                setProgress(100);
-                emit replaceLast(QString("Sync customer environment with filesystem ..."), UPDATE_STEP_DONE);
-                return true;
+                // now check tariff-files in etc and /etc/psa_tariff
+                QDir dir1(QDir::cleanPath(m_customerRepository + QDir::separator() + "etc/psa_tariff"));
+                QDir dir2("/etc/psa_tariff");
+                if (Utils::sameFilesInDirs(dir1, dir2)) {
+                    setProgress(100);
+                    emit replaceLast(QString("Sync customer environment with filesystem ..."), UPDATE_STEP_DONE);
+                    return true;
+                } else {
+                    // TODO: send message to ISMAS
+                }
             }
         }
     }