diff --git a/kcms/workspaceoptions/package/contents/ui/main.qml b/kcms/workspaceoptions/package/contents/ui/main.qml
--- a/kcms/workspaceoptions/package/contents/ui/main.qml
+++ b/kcms/workspaceoptions/package/contents/ui/main.qml
@@ -73,7 +73,7 @@
                 Layout.fillWidth: true
                 from: -4
                 to: 4
-                stepSize: 1
+                stepSize: 0.5
                 snapMode: QQC2.Slider.SnapAlways
                 onMoved: {
                     if(value === to) {