diff --git a/lib/QRCode.js b/lib/QRCode.js
index 8b2a7ee..c5224d7 100644
--- a/lib/QRCode.js
+++ b/lib/QRCode.js
@@ -46,6 +46,7 @@ var QRCode = React.createClass({
             value: 'https://github.com/cssivision',
             fgColor: 'white',
             bgColor: 'black',
+            size: 128,
         }
     },
 
@@ -62,7 +63,7 @@ var QRCode = React.createClass({
                         cells: qr(this.props.value).modules,
                     }}
                     render={renderCanvas}
-                    style={{height: size + 2, width: size + 2}}
+                    style={{height: size, width: size}}
                 />
             </View>
         );