diff --git a/modules/words/words.js b/modules/words/words.js
index 34e17ab..ff5e79c 100644
--- a/modules/words/words.js
+++ b/modules/words/words.js
@@ -16,12 +16,16 @@ var words = function(dbot) {
         '~like': function(event) {
             var query = event.params[1];
             this.wn.word(query, {}, function(err, word) {
-                if(!err && word[0]) {
+                if(!err && word) {
                     word.related({
                         'limit': 10
                     }, function(err, related) {
-                        event.reply('Words related to ' + query + ': ' +
-                            related[0].words.join(', ') + '.');
+                        if(related[0]) {
+                            event.reply('Words related to ' + query + ': ' +
+                                related[0].words.join(', ') + '.');
+                        } else {
+                            event.reply('No similar words found.');
+                        }
                     });
                 } else {
                     event.reply('Unknown word.');