diff --git a/src/plugins/cpptools/cppvirtualfunctionassistprovider.h b/src/plugins/cpptools/cppvirtualfunctionassistprovider.h
index 52734bd71bb..83de52594b9 100644
--- a/src/plugins/cpptools/cppvirtualfunctionassistprovider.h
+++ b/src/plugins/cpptools/cppvirtualfunctionassistprovider.h
@@ -40,6 +40,7 @@ namespace CppTools {
 
 class CPPTOOLS_EXPORT VirtualFunctionAssistProvider : public TextEditor::IAssistProvider
 {
+    Q_OBJECT
 public:
     VirtualFunctionAssistProvider();
 
diff --git a/src/plugins/texteditor/codeassist/codeassistant.cpp b/src/plugins/texteditor/codeassist/codeassistant.cpp
index 4a5a23bf4d7..3cbd99b5177 100644
--- a/src/plugins/texteditor/codeassist/codeassistant.cpp
+++ b/src/plugins/texteditor/codeassist/codeassistant.cpp
@@ -512,7 +512,7 @@ bool CodeAssistantPrivate::isDestroyEvent(int key, const QString &keyText)
 {
     if (keyText.isEmpty())
         return key != Qt::LeftArrow && key != Qt::RightArrow && key != Qt::Key_Shift;
-    else if (auto *provider = dynamic_cast<CompletionAssistProvider *>(m_requestProvider))
+    if (auto *provider = qobject_cast<CompletionAssistProvider *>(m_requestProvider))
         return !provider->isContinuationChar(keyText.at(0));
     return false;
 }