diff --git a/ometa-base.js b/ometa-base.js
index 8155eea0..747b18f8 100644
--- a/ometa-base.js
+++ b/ometa-base.js
@@ -504,8 +504,8 @@ OMeta = {
     var m = objectThatDelegatesTo(this)
     m.initialize()
     m.matchAll = function(listyObj, aRule) {
-      m.input = listyObj.toOMInputStream()
-      return m._apply(aRule)
+      this.input = listyObj.toOMInputStream()
+      return this._apply(aRule)
     }
     return m
   }