diff --git a/src/renderer/CanvasRenderer.js b/src/renderer/CanvasRenderer.js
index 3ec594c..8f87d8d 100644
--- a/src/renderer/CanvasRenderer.js
+++ b/src/renderer/CanvasRenderer.js
@@ -46,7 +46,7 @@ var CanvasRenderer = Renderer.extend({
     for (i = 0; i < frame.width; i++) {
       for (j = 0; j < frame.width; j++) {
         if (frame.buffer[(j * frame.width) + i]) {
-          context.fillRect((moduleSize * i) + offset, (moduleSize * j) + offset, moduleSize, moduleSize);
+          context.fillRect(Math.ceil((moduleSize * i) + offset), Math.ceil((moduleSize * j) + offset), Math.ceil(moduleSize), Math.ceil(moduleSize));
         }
       }
     }
diff --git a/src/renderer/Renderer.js b/src/renderer/Renderer.js
index a87f613..94d102a 100644
--- a/src/renderer/Renderer.js
+++ b/src/renderer/Renderer.js
@@ -116,7 +116,7 @@ var Renderer = Nevis.extend(function(qrious, element, enabled) {
   getModuleSize: function(frame) {
     var qrious = this.qrious;
     var padding = qrious.padding || 0;
-    var pixels = Math.floor((qrious.size - (padding * 2)) / frame.width);
+    var pixels = (qrious.size - (padding * 2)) / frame.width;
 
     return Math.max(1, pixels);
   },
@@ -143,7 +143,7 @@ var Renderer = Nevis.extend(function(qrious, element, enabled) {
     }
 
     var moduleSize = this.getModuleSize(frame);
-    var offset = Math.floor((qrious.size - (moduleSize * frame.width)) / 2);
+    var offset = (qrious.size - (moduleSize * frame.width)) / 2;
 
     return Math.max(0, offset);
   },