diff --git a/src/jquery.qrcode.js b/src/jquery.qrcode.js
index 484bae8..cfd8bfe 100644
--- a/src/jquery.qrcode.js
+++ b/src/jquery.qrcode.js
@@ -34,8 +34,10 @@
 			// draw in the canvas
 			for( var row = 0; row < qrcode.getModuleCount(); row++ ){
 				for( var col = 0; col < qrcode.getModuleCount(); col++ ){
-					ctx.fillStyle = qrcode.isDark(row, col) ? "#000000" : "#ffffff";
-					ctx.fillRect( col*tileW, row*tileH, tileW, tileH );  
+	                            ctx.fillStyle = qrcode.isDark(row, col) ? options.foreground : options.background;
+                                    var w = (Math.ceil((col+1)*tileW) - Math.floor(col*tileW));
+                                    var h = (Math.ceil((row+1)*tileW) - Math.floor(row*tileW));
+                                    ctx.fillRect(Math.round(col*tileW),Math.round(row*tileH), w, h);  
 				}	
 			}
 			// return just built canvas