diff --git a/src/plugins/cmakeprojectmanager/cmakeproject.cpp b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
index 60bcd0bf14e..4c6ffd8d86c 100644
--- a/src/plugins/cmakeprojectmanager/cmakeproject.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
@@ -62,6 +62,7 @@
 #include <QFormLayout>
 #include <QMainWindow>
 #include <QInputDialog>
+#include <QFileSystemWatcher>
 
 using namespace CMakeProjectManager;
 using namespace CMakeProjectManager::Internal;
diff --git a/src/plugins/cmakeprojectmanager/cmakeproject.h b/src/plugins/cmakeprojectmanager/cmakeproject.h
index e3bf1f1460b..778bc7fc9ef 100644
--- a/src/plugins/cmakeprojectmanager/cmakeproject.h
+++ b/src/plugins/cmakeprojectmanager/cmakeproject.h
@@ -48,10 +48,13 @@
 #include <coreplugin/editormanager/ieditor.h>
 
 #include <QXmlStreamReader>
-#include <QFileSystemWatcher>
 #include <QPushButton>
 #include <QLineEdit>
 
+QT_BEGIN_NAMESPACE
+class QFileSystemWatcher;
+QT_END_NAMESPACE
+
 namespace CMakeProjectManager {
 namespace Internal {