diff --git a/public/app/features/dashboard/state/PanelModel.ts b/public/app/features/dashboard/state/PanelModel.ts
index 8202b03286e..7bfc7c72a7d 100644
--- a/public/app/features/dashboard/state/PanelModel.ts
+++ b/public/app/features/dashboard/state/PanelModel.ts
@@ -313,7 +313,7 @@ export class PanelModel implements DataConfigSource, IPanelModel {
       timezone: dashboardTimezone,
       timeRange: timeData.timeRange,
       timeInfo: timeData.timeInfo,
-      maxDataPoints: this.maxDataPoints || width,
+      maxDataPoints: this.maxDataPoints || Math.floor(width),
       minInterval: this.interval,
       scopedVars: this.scopedVars,
       cacheTimeout: this.cacheTimeout,