--- a/src/pyams_workflow/zmi/transition.py	Thu Jul 12 10:53:05 2018 +0200
+++ b/src/pyams_workflow/zmi/transition.py	Thu Jul 12 18:20:06 2018 +0200
@@ -61,8 +61,6 @@
         if 'transition_id' in self.widgets:
             self.widgets['transition_id'].mode = HIDDEN_MODE
             self.widgets['transition_id'].value = self.request.params.get('workflow.widgets.transition_id')
-        if 'comment' in self.widgets:
-            self.widgets['comment'].widget_css_class = 'textarea'
 
     def updateActions(self):
         super(WorkflowContentTransitionForm, self).updateActions()