diff --git a/lib/core.js b/lib/core.js
index 85e1cc46..074c5e6a 100644
--- a/lib/core.js
+++ b/lib/core.js
@@ -214,7 +214,9 @@ SystemJSLoader.prototype.config = function(cfg) {
         normalizeProp = true;
 
       for (var p in v) {
-        if (normalizeProp)
+        if (c == 'meta' && p[0] == '*')
+          this[c][p] = v[p];
+        else if (normalizeProp)
           this[c][this.normalizeSync(p)] = v[p];
         else
           this[c][p] = v[p];