diff --git a/lib/handlebars/compiler/ast.js b/lib/handlebars/compiler/ast.js
index a8a68446..fd6cdc5a 100644
--- a/lib/handlebars/compiler/ast.js
+++ b/lib/handlebars/compiler/ast.js
@@ -117,7 +117,7 @@ var Handlebars = require('./base');
   Handlebars.AST.BooleanNode = function(bool) {
     this.type = "BOOLEAN";
     this.bool = bool;
-    this.stringModeValue = Boolean(bool);
+    this.stringModeValue = bool === "true";
   };
 
   Handlebars.AST.CommentNode = function(comment) {
diff --git a/spec/qunit_spec.js b/spec/qunit_spec.js
index 6bc5a436..fb78c37c 100644
--- a/spec/qunit_spec.js
+++ b/spec/qunit_spec.js
@@ -1194,16 +1194,17 @@ test("when inside a block in String mode, .. passes the appropriate context in t
 });
 
 test("in string mode, information about the types is passed along", function() {
-  var template = CompilerContext.compile('{{tomdale "need" dad.joke true}}', { stringParams: true });
+  var template = CompilerContext.compile('{{tomdale "need" dad.joke true false}}', { stringParams: true });
 
   var helpers = {
-    tomdale: function(desire, noun, bool, options) {
+    tomdale: function(desire, noun, trueBool, falseBool, options) {
       equal(options.types[0], 'STRING', "the string type is passed");
       equal(options.types[1], 'ID', "the expression type is passed");
       equal(options.types[2], 'BOOLEAN', "the expression type is passed");
       equal(desire, "need", "the string form is passed for strings");
       equal(noun, "dad.joke", "the string form is passed for expressions");
-      equal(bool, true, "raw booleans are passed through");
+      equal(trueBool, true, "raw booleans are passed through");
+      equal(falseBool, false, "raw booleans are passed through");
       return "Helper called";
     }
   };