diff --git a/src/declarativeimports/plasmacomponents/qml/TabBar.qml b/src/declarativeimports/plasmacomponents/qml/TabBar.qml
--- a/src/declarativeimports/plasmacomponents/qml/TabBar.qml
+++ b/src/declarativeimports/plasmacomponents/qml/TabBar.qml
@@ -100,6 +100,21 @@
         }
         clip: true
 
+        // Subtle line separating the tabbar from its content view
+        PlasmaCore.SvgItem {
+            svg: PlasmaCore.Svg {
+                id: lineSvg;
+                imagePath: "widgets/line"
+            }
+            elementId: layout.isHorizontal ? "horizontal-line" : "vertical-line"
+
+            width:  layout.isHorizontal ? buttonCutter.width : 1
+            height: layout.isHorizontal ? 1 : buttonCutter.height
+
+            x: tabPosition == Qt.LeftEdge ? buttonCutter.width : -width
+            y: tabPosition == Qt.TopEdge  ? buttonCutter.height : -width
+        }
+
         PlasmaCore.FrameSvgItem {
             id: buttonFrame