diff --git a/core/document.cpp b/core/document.cpp
--- a/core/document.cpp
+++ b/core/document.cpp
@@ -3406,6 +3406,7 @@
 
 void DocumentPrivate::notifyFormChanges( int /*page*/ )
 {
+    recalculateForms();
 }
 
 void Document::addPageAnnotation( int page, Annotation * annotation )