1 files changed, 9 insertions, 6 deletions
diff --git a/src/plugins/coreplugin/idocument.h b/src/plugins/coreplugin/idocument.h
index feae466705..c2a7e90cf8 100644
--- a/src/plugins/coreplugin/idocument.h
+++ b/src/plugins/coreplugin/idocument.h
@@ -27,13 +27,16 @@
 
 #include "core_global.h"
 
+#include <utils/id.h>
+
 #include <QObject>
 
-namespace Utils { class FilePath; }
+namespace Utils {
+class FilePath;
+class InfoBar;
+} // namespace Utils
 
 namespace Core {
-class Id;
-class InfoBar;
 
 namespace Internal {
 class IDocumentPrivate;
@@ -82,8 +85,8 @@ public:
     IDocument(QObject *parent = nullptr);
     ~IDocument() override;
 
-    void setId(Id id);
-    Id id() const;
+    void setId(Utils::Id id);
+    Utils::Id id() const;
 
     // required to be re-implemented for documents of IEditors
     virtual OpenResult open(QString *errorString, const QString &fileName, const QString &realFileName);
@@ -130,7 +133,7 @@ public:
     bool hasWriteWarning() const;
     void setWriteWarning(bool has);
 
-    InfoBar *infoBar();
+    Utils::InfoBar *infoBar();
 
 signals:
     // For meta data changes: file name, modified state, ...