diff --git a/src/plugins/qmakeprojectmanager/qmakenodes.h b/src/plugins/qmakeprojectmanager/qmakenodes.h
index 778f84b64fd..7dc1133fd0c 100644
--- a/src/plugins/qmakeprojectmanager/qmakenodes.h
+++ b/src/plugins/qmakeprojectmanager/qmakenodes.h
@@ -12,7 +12,6 @@
 namespace QmakeProjectManager {
 
 class QmakeProFileNode;
-class QmakeProject;
 
 // Implements ProjectNode for qmake .pri files
 class QMAKEPROJECTMANAGER_EXPORT QmakePriFileNode : public ProjectExplorer::ProjectNode