diff --git a/src/emojify.js b/src/emojify.js
index 99213e80..c0a3a3c6 100644
--- a/src/emojify.js
+++ b/src/emojify.js
@@ -306,7 +306,7 @@
 
                 var nodes = [];
 
-                var elementsBlacklist = new RegExp(defaultConfig.blacklist.elements.join('|'), 'i'),
+                var elementsBlacklist = new RegExp('^(' + defaultConfig.blacklist.elements.join('|') + ')$', 'i'),
                     classesBlacklist = new RegExp(defaultConfig.blacklist.classes.join('|'), 'i');
 
                 if(typeof win.document.createTreeWalker !== 'undefined') {
@@ -314,7 +314,7 @@
                         el,
                         win.NodeFilter.SHOW_TEXT | win.NodeFilter.SHOW_ELEMENT,
                         function(node) {
-                            if(node.nodeType !== 1) {
+                            if(node.nodeType !== node.ELEMENT_NODE) {
                                 /* Text Node? Good! */
                                 return win.NodeFilter.FILTER_ACCEPT;
                             }
@@ -342,7 +342,7 @@
                         ){
                             return false;
                         }
-                        if (node.nodeType === 1) {
+                        if (node.nodeType === node.ELEMENT_NODE) {
                             return true;
                         }