diff --git a/src/main/java/org/parabot/environment/api/utils/Timer.java b/src/main/java/org/parabot/environment/api/utils/Timer.java
index b4ea42a..fa3c07e 100644
--- a/src/main/java/org/parabot/environment/api/utils/Timer.java
+++ b/src/main/java/org/parabot/environment/api/utils/Timer.java
@@ -23,6 +23,7 @@ public class Timer {
      * Timer Constructor
      *
      * @param end
+     * @param start
      */
     public Timer(long end, long start) {
         this.start = start;