diff --git a/src/plugins/qt4projectmanager/qt4nodes.cpp b/src/plugins/qt4projectmanager/qt4nodes.cpp
index 77fd1e99347..8f88e221450 100644
--- a/src/plugins/qt4projectmanager/qt4nodes.cpp
+++ b/src/plugins/qt4projectmanager/qt4nodes.cpp
@@ -2260,7 +2260,7 @@ QString Qt4ProFileNode::buildDir(Qt4BuildConfiguration *bc) const
         bc = static_cast<Qt4BuildConfiguration *>(m_project->activeTarget()->activeBuildConfiguration());
     if (!bc)
         return QString();
-    return QDir(bc->buildDirectory()).absoluteFilePath(relativeDir);
+    return QDir::cleanPath(QDir(bc->buildDirectory()).absoluteFilePath(relativeDir));
 }
 
 void Qt4ProFileNode::updateCodeModelSupportFromBuild()