Fix js error when using output without root

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/config/index.js b/lib/config/index.js
index a59cbd7..6887cc2 100644
--- a/lib/config/index.js
+++ b/lib/config/index.js
@@ -93,7 +93,7 @@ Config.prototype.replace = function(options) {
     });
 
     error.deprecateField(this.options, 'generator', (this.book.output? this.book.output.name : null), '"options.generator" property is deprecated, use "output.name" instead');
-    error.deprecateField(this.options, 'output', (this.book.output? this.book.output.root() : null), '"options.output" property is deprecated, use "output.root()" instead');
+    error.deprecateField(this.options, 'output', (this.book.output && this.book.output.root? this.book.output.root() : null), '"options.output" property is deprecated, use "output.root()" instead');
 };
 
 // Return true if book has a configuration file
@@ -123,7 +123,8 @@ Config.prototype.set = function(key, value) {
 
 // Return a dump of the configuration
 Config.prototype.dump = function() {
-    return _.cloneDeep(this.options);
+    var opts = _.omit(this.options, 'generator', 'output');
+    return _.cloneDeep(opts);
 };
 
 // Return templating context