diff --git a/src/org/fdroid/fdroid/updater/RepoUpdater.java b/src/org/fdroid/fdroid/updater/RepoUpdater.java
index 00003d01d..d961e26fb 100644
--- a/src/org/fdroid/fdroid/updater/RepoUpdater.java
+++ b/src/org/fdroid/fdroid/updater/RepoUpdater.java
@@ -268,6 +268,7 @@ abstract public class RepoUpdater {
 
     public static class UpdateException extends Exception {
 
+        private static final long serialVersionUID = -4492452418826132803L;
         public final Repo repo;
 
         public UpdateException(Repo repo, String message) {