diff --git a/web/stat.mjs b/web/stat.mjs
index 952f28c..bb4001a 100644
--- a/web/stat.mjs
+++ b/web/stat.mjs
@@ -144,8 +144,8 @@ class AreaChart extends Chart {
         super(element, stat)
         this.historyLen = historyLen
         this.history = Array(this.historyLen) // Make it fill in from the right
-        this.canvas.width = 600
-        this.canvas.height = 500
+        this.canvas.width = 1920
+        this.canvas.height = 1080
 
         // Cartesian coordinates
         this.ctx.translate(0, this.canvas.height)
@@ -180,7 +180,7 @@ class AreaChart extends Chart {
                 let val = h[j]
                 this.ctx.beginPath()
                 this.ctx.fillStyle = this.colors[j]
-                this.ctx.rect(x, y, xStep, yStep * val)
+                this.ctx.rect(x, y, Math.ceil(xStep), Math.ceil(yStep * val))
                 this.ctx.fill()
                 y += yStep * val
             }
@@ -235,4 +235,4 @@ export {
     PieChart,
     AreaChart,
     AutoStat,
-}
\ No newline at end of file
+}