diff --git a/src/plugins/debugger/qml/qmlcppengine.h b/src/plugins/debugger/qml/qmlcppengine.h
index 7c3ea0a9aca7b051e6157a23e9f228647dca95a1..70a54888be063d55b1e71a8dbd9e65548d52013e 100644
--- a/src/plugins/debugger/qml/qmlcppengine.h
+++ b/src/plugins/debugger/qml/qmlcppengine.h
@@ -11,7 +11,7 @@ class IEditor;
 
 namespace Debugger {
 
-struct QmlCppEnginePrivate;
+class QmlCppEnginePrivate;
 
 class DEBUGGER_EXPORT QmlCppEngine : public DebuggerEngine
 {
diff --git a/src/plugins/debugger/qml/qmlengine.h b/src/plugins/debugger/qml/qmlengine.h
index d080da6eddf4f285f62f5d5e6fade171f14df405..3ad4f40152b86fed8a497ae47f1b711f6267403f 100644
--- a/src/plugins/debugger/qml/qmlengine.h
+++ b/src/plugins/debugger/qml/qmlengine.h
@@ -38,7 +38,7 @@
 namespace Debugger {
 class QmlAdapter;
 
-struct QmlEnginePrivate;
+class QmlEnginePrivate;
 
 class DEBUGGER_EXPORT QmlEngine : public DebuggerEngine
 {
diff --git a/src/plugins/qmljseditor/jsfilewizard.cpp b/src/plugins/qmljseditor/jsfilewizard.cpp
index 40da99d2a58a6f1ec0037bd918e320961e341ca7..db161119a451b1785684d0b57d0f3224ac3a77b3 100644
--- a/src/plugins/qmljseditor/jsfilewizard.cpp
+++ b/src/plugins/qmljseditor/jsfilewizard.cpp
@@ -95,7 +95,7 @@ JsFileWizard::JsFileWizard(const BaseFileWizardParameters &parameters,
 }
 
 Core::GeneratedFiles JsFileWizard::generateFiles(const QWizard *w,
-                                                 QString */*errorMessage*/) const
+                                                 QString * /*errorMessage*/) const
 {
     const JsFileWizardDialog *wizardDialog = qobject_cast<const JsFileWizardDialog *>(w);
     const QString path = wizardDialog->path();