diff --git a/src/widgets/dialogs/qcolordialog.cpp b/src/widgets/dialogs/qcolordialog.cpp
index b69dbfd650..f7f45c74ac 100644
--- a/src/widgets/dialogs/qcolordialog.cpp
+++ b/src/widgets/dialogs/qcolordialog.cpp
@@ -1768,7 +1768,8 @@ void QColorDialogPrivate::initWidgets()
     topLay->addWidget(cs);
 #else
     rightLay->addWidget(cs);
-    leftLay->addSpacing(cs->gl->margin());
+    if (leftLay)
+        leftLay->addSpacing(cs->gl->margin());
 #endif
 
     buttons = new QDialogButtonBox(q);