diff --git a/src/App/Document.cpp b/src/App/Document.cpp
index 09f99c7326..b7f3e34884 100644
--- a/src/App/Document.cpp
+++ b/src/App/Document.cpp
@@ -1263,7 +1263,14 @@ int Document::getTransactionID(bool undo, unsigned pos) const {
 bool Document::isTransactionEmpty() const
 {
     if (d->activeUndoTransaction) {
-        return d->activeUndoTransaction->isEmpty();
+        // Transactions are now only created when there are actual changes.
+        // Empty transaction is now significant for marking external changes. It
+        // is used to match ID with transactions in external documents and
+        // trigger undo/redo there.
+
+        // return d->activeUndoTransaction->isEmpty();
+
+        return false;
     }
 
     return true;