diff --git a/src/plugins/coreplugin/mimetypemagicdialog.h b/src/plugins/coreplugin/mimetypemagicdialog.h
index 023f878a53e..c45b9b70a92 100644
--- a/src/plugins/coreplugin/mimetypemagicdialog.h
+++ b/src/plugins/coreplugin/mimetypemagicdialog.h
@@ -75,7 +75,6 @@ private:
     QSpinBox *m_prioritySpinBox;
     QSpinBox *m_startRangeSpinBox;
     QSpinBox *m_endRangeSpinBox;
-    QSpacerItem *verticalSpacer;
 };
 
 } // Core::Internal