diff --git a/src/main/java/org/apache/commons/lang3/tuple/ImmutablePair.java b/src/main/java/org/apache/commons/lang3/tuple/ImmutablePair.java
index 85409fe0f..3df3a7fa0 100644
--- a/src/main/java/org/apache/commons/lang3/tuple/ImmutablePair.java
+++ b/src/main/java/org/apache/commons/lang3/tuple/ImmutablePair.java
@@ -43,10 +43,12 @@ public final class ImmutablePair<L, R> extends Pair<L, R> {
     /** Serialization version */
     private static final long serialVersionUID = 4954918890077093841L;
 
-    /** 
+    /**
      * Returns an immutable pair of nulls.
-     * 
-     * @return an immutable pair of nulls. 
+     *
+     * @param <L> the left element of this pair. Value is {@code null}.
+     * @param <R> the right element of this pair. Value is {@code null}.
+     * @return an immutable pair of nulls.
      * @since 3.6
      */
     @SuppressWarnings("unchecked")
diff --git a/src/main/java/org/apache/commons/lang3/tuple/ImmutableTriple.java b/src/main/java/org/apache/commons/lang3/tuple/ImmutableTriple.java
index 49f5746db..83e212efc 100644
--- a/src/main/java/org/apache/commons/lang3/tuple/ImmutableTriple.java
+++ b/src/main/java/org/apache/commons/lang3/tuple/ImmutableTriple.java
@@ -44,9 +44,12 @@ public final class ImmutableTriple<L, M, R> extends Triple<L, M, R> {
     /** Serialization version */
     private static final long serialVersionUID = 1L;
 
-    /** 
+    /**
      * Returns an immutable triple of nulls.
-     * 
+     *
+     * @param <L> the left element of this triple. Value is {@code null}.
+     * @param <M> the middle element of this triple. Value is {@code null}.
+     * @param <R> the right element of this triple. Value is {@code null}.
      * @return an immutable triple of nulls. 
      * @since 3.6
      */