diff --git a/lib/canvas.js b/lib/canvas.js
index 741f5fa..673e2b2 100644
--- a/lib/canvas.js
+++ b/lib/canvas.js
@@ -60,7 +60,7 @@ var weights = 'normal|bold|bolder|lighter|[1-9](?:00)'
  * Font parser RegExp;
  */
 
-var font = new RegExp('^ *'
+var fontre = new RegExp('^ *'
   + '(?:(' + weights + ') *)?'
   + '(?:(' + styles + ') *)?'
   + '(\\d+)(' + units + ') *'
@@ -110,7 +110,7 @@ function normalizedColor(prop) {
 var parseFont = exports.parseFont = function(str){
   if (cache[str]) return cache[str];
   var obj = {}
-    , captures = font.exec(str);
+    , captures = fontre.exec(str);
   if (!captures) return;
   obj.weight = captures[1] || 'normal';
   obj.style = captures[2] || 'normal';