Fix block param evaluation under older IE

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/handlebars/compiler/compiler.js b/lib/handlebars/compiler/compiler.js
index 13143cc..95fe101 100644
--- a/lib/handlebars/compiler/compiler.js
+++ b/lib/handlebars/compiler/compiler.js
@@ -1,5 +1,5 @@
 import Exception from "../exception";
-import {isArray} from "../utils";
+import {isArray, indexOf} from "../utils";
 import AST from "./ast";
 
 var slice = [].slice;
@@ -400,7 +400,7 @@ Compiler.prototype = {
   blockParamIndex: function(name) {
     for (var depth = 0, len = this.options.blockParams.length; depth < len; depth++) {
       var blockParams = this.options.blockParams[depth],
-          param = blockParams && blockParams.indexOf(name);
+          param = blockParams && indexOf(blockParams, name);
       if (blockParams && param >= 0) {
         return [depth, param];
       }