diff --git a/lib/badwords.js b/lib/badwords.js
index a02d0d4..bee2989 100644
--- a/lib/badwords.js
+++ b/lib/badwords.js
@@ -58,7 +58,7 @@ class Filter {
 
   /**
    * Add word(s) to blacklist filter / remove words from whitelist filter
-   * @param {...string}
+   * @param {...string} word - Word(s) to add to blacklist
    */
   addWords() {
     let words = Array.from(arguments);