diff --git a/src/main/java/org/apache/commons/lang3/ThreadUtils.java b/src/main/java/org/apache/commons/lang3/ThreadUtils.java
index bbb5d2949..45e29489b 100644
--- a/src/main/java/org/apache/commons/lang3/ThreadUtils.java
+++ b/src/main/java/org/apache/commons/lang3/ThreadUtils.java
@@ -380,7 +380,7 @@ public class ThreadUtils {
     /**
      * Select all active threadgroups which match the given predicate.
      *
-     * @param predicate
+     * @param predicate the predicate
      * @return An unmodifiable {@code Collection} of active threadgroups matching the given predicate
      * @throws IllegalArgumentException if the predicate is null
      * @throws  SecurityException