diff --git a/packages/grafana-ui/src/components/uPlot/config/gradientFills.ts b/packages/grafana-ui/src/components/uPlot/config/gradientFills.ts
index c3daf47fb0a..f1443c6d587 100644
--- a/packages/grafana-ui/src/components/uPlot/config/gradientFills.ts
+++ b/packages/grafana-ui/src/components/uPlot/config/gradientFills.ts
@@ -134,6 +134,10 @@ export function scaleGradient(u: uPlot, scaleKey: string, scaleStops: ScaleValue
 
   let range = minStopPos - maxStopPos;
 
+  if (range === 0) {
+    return scaleStops[maxStopIdx!][1];
+  }
+
   let x0, y0, x1, y1;
 
   if (u.scales.x!.ori === ScaleOrientation.Horizontal) {