diff --git a/tryton/gui/window/view_form/view/form.py b/tryton/gui/window/view_form/view/form.py
index 7373db20cc..a4b50243ad 100644
--- a/tryton/gui/window/view_form/view/form.py
+++ b/tryton/gui/window/view_form/view/form.py
@@ -184,8 +184,8 @@ class ViewForm(ParserView):
             self.screen.display()
             return
         else:
-            widget.set_sensitive(False)
+            widget.handler_block_by_func(self.button_clicked)
             try:
                 self.screen.button(widget.attrs)
             finally:
-                widget.set_sensitive(True)
+                widget.handler_unblock_by_func(self.button_clicked)