Create objects without prototypes when used as map with arbitrary keys

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/docx/styles-reader.js b/lib/docx/styles-reader.js
index 276a668..1daa5e9 100644
--- a/lib/docx/styles-reader.js
+++ b/lib/docx/styles-reader.js
@@ -22,10 +22,10 @@ function Styles(paragraphStyles, characterStyles, tableStyles, numberingStyles)
 Styles.EMPTY = new Styles({}, {}, {}, {});
 
 function readStylesXml(root) {
-    var paragraphStyles = {};
-    var characterStyles = {};
-    var tableStyles = {};
-    var numberingStyles = {};
+    var paragraphStyles = Object.create(null);
+    var characterStyles = Object.create(null);
+    var tableStyles = Object.create(null);
+    var numberingStyles = Object.create(null);
 
     root.getElementsByTagName("w:style").forEach(function(styleElement) {
         var style = readStyleElement(styleElement);