diff --git a/src/plugins/qt4projectmanager/qt4nodes.cpp b/src/plugins/qt4projectmanager/qt4nodes.cpp
index be2091102e9..078fcb1f806 100644
--- a/src/plugins/qt4projectmanager/qt4nodes.cpp
+++ b/src/plugins/qt4projectmanager/qt4nodes.cpp
@@ -2455,9 +2455,14 @@ InstallsList Qt4ProFileNode::installsList() const
     return m_installsList;
 }
 
+QString Qt4ProFileNode::sourceDir() const
+{
+    return m_projectDir;
+}
+
 QString Qt4ProFileNode::buildDir(Qt4BuildConfiguration *bc) const
 {
-    const QDir srcDirRoot = QFileInfo(m_project->rootProjectNode()->path()).absoluteDir();
+    const QDir srcDirRoot = m_project->rootQt4ProjectNode()->sourceDir();
     const QString relativeDir = srcDirRoot.relativeFilePath(m_projectDir);
     if (!bc && m_project->activeTarget())
         bc = qobject_cast<Qt4BuildConfiguration *>(m_project->activeTarget()->activeBuildConfiguration());
diff --git a/src/plugins/qt4projectmanager/qt4nodes.h b/src/plugins/qt4projectmanager/qt4nodes.h
index cdc7a8d9261..6fe8a1a65f8 100644
--- a/src/plugins/qt4projectmanager/qt4nodes.h
+++ b/src/plugins/qt4projectmanager/qt4nodes.h
@@ -368,6 +368,7 @@ public:
     void updateCodeModelSupportFromBuild(const QStringList &files);
     void updateCodeModelSupportFromEditor(const QString &uiFileName, const QString &contents);
 
+    QString sourceDir() const;
     QString buildDir(Qt4BuildConfiguration *bc = 0) const;
 
     QString uiDirectory() const;