diff --git a/qt/DeviceView.cpp b/qt/DeviceView.cpp
index 5552a2f77..2c99176b9 100644
--- a/qt/DeviceView.cpp
+++ b/qt/DeviceView.cpp
@@ -334,7 +334,7 @@ void DeviceView::setController(RGBController * controller_ptr)
 
 QSize DeviceView::sizeHint () const
 {
-    return QSize(height(),height());
+    return QSize(height() - 1, height() - 1);
 }
 
 QSize DeviceView::minimumSizeHint () const