diff --git a/src/plugins/projectexplorer/buildstepspage.cpp b/src/plugins/projectexplorer/buildstepspage.cpp
index 71a53d2b68d..b4f8de53e3e 100644
--- a/src/plugins/projectexplorer/buildstepspage.cpp
+++ b/src/plugins/projectexplorer/buildstepspage.cpp
@@ -478,7 +478,7 @@ void BuildStepListWidget::updateBuildStepButtonsState()
 
         s->toolWidget->setUpEnabled((i > 0)
                                     && !(m_buildStepList->at(i)->immutable()
-                                         && m_buildStepList->at(i - 1)));
+                                         && m_buildStepList->at(i - 1)->immutable()));
         m_upMapper->setMapping(s->toolWidget, i);
         s->toolWidget->setDownEnabled((i + 1 < m_buildStepList->count())
                                       && !(m_buildStepList->at(i)->immutable()