diff --git a/src/plugins/cmakeprojectmanager/cmakeopenprojectwizard.cpp b/src/plugins/cmakeprojectmanager/cmakeopenprojectwizard.cpp
index 2c1cd7fdfdf..ea9f4245385 100644
--- a/src/plugins/cmakeprojectmanager/cmakeopenprojectwizard.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeopenprojectwizard.cpp
@@ -77,7 +77,9 @@ CMakeOpenProjectWizard::CMakeOpenProjectWizard(CMakeManager *cmakeManager, const
         m_buildDirectory = m_sourceDirectory;
     } else {
         startid = ShadowBuildPageId;
-        m_buildDirectory = m_sourceDirectory + "/qtcreator-build";
+        QDir dir(m_sourceDirectory);
+        dir.cdUp();
+        m_buildDirectory = dir.absolutePath() + "/qtcreator-build";
     }
 
     setPage(InSourcePageId, new InSourceBuildPage(this));