diff --git a/packages/grafana-ui/src/components/Graph/Graph.tsx b/packages/grafana-ui/src/components/Graph/Graph.tsx
index 1558378c6f9..d34a5ea9df2 100644
--- a/packages/grafana-ui/src/components/Graph/Graph.tsx
+++ b/packages/grafana-ui/src/components/Graph/Graph.tsx
@@ -304,7 +304,7 @@ export class Graph extends PureComponent<GraphProps, GraphState> {
         stack: isStacked,
         lines: {
           show: showLines,
-          linewidth: lineWidth,
+          lineWidth: lineWidth,
           zero: false,
         },
         points: {