diff --git a/themes/System/gimp.css b/themes/System/gimp.css
index cda67ec6a9..59f8f21662 100644
--- a/themes/System/gimp.css
+++ b/themes/System/gimp.css
@@ -9,7 +9,6 @@
     -GimpToolPalette-button-relief:    none;
     -GimpDockbook-tab-icon-size:       button;
     -GimpColorNotebook-tab-icon-size:  button;
-    -GimpDeviceEditor-handle-size:     12;
     -GimpDockable-content-border:      2;
     -GimpEditor-content-spacing:       2;
     -GimpEditor-button-spacing:        2;