diff --git a/src/cheogram/java/eu/siacs/conversations/services/ImportBackupService.java b/src/cheogram/java/eu/siacs/conversations/services/ImportBackupService.java
index c118d7375365febc8206b36bf4f2ec1ceb8fa98c..16f9fc32b69545aca762f8e114a6eb9e2b00108c 100644
--- a/src/cheogram/java/eu/siacs/conversations/services/ImportBackupService.java
+++ b/src/cheogram/java/eu/siacs/conversations/services/ImportBackupService.java
@@ -262,6 +262,10 @@ public class ImportBackupService extends Service {
                     }
                 } else {
                     if (count % 2 == 0) {
+                        if (line.startsWith("INSERT INTO cheogram.webxdc_updates(serial,")) {
+                            // re-number webxdc using autoincrement in the local database
+                            line = line.replaceAll("\\([^,]+,", "(");
+                        }
                         db.execSQL(line);
                         updateImportBackupNotification(fileSize, countingInputStream.getCount());
                     } else {
@@ -391,4 +395,4 @@ public class ImportBackupService extends Service {
             return ImportBackupService.this;
         }
     }
-}
\ No newline at end of file
+}