diff --git a/src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp b/src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp
index 6abdeff6087..292c46ccccf 100644
--- a/src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp
+++ b/src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp
@@ -292,6 +292,8 @@ bool FunctionHintProposalWidget::eventFilter(QObject *obj, QEvent *e)
                 if (d->m_model && d->m_model->size() > 1)
                     return false;
             }
+            if (QTC_GUARD(d->m_assistant))
+                d->m_assistant->notifyChange();
         }
         break;
     case QEvent::WindowDeactivate: