diff --git a/src/main/java/org/apache/commons/lang3/ClassUtils.java b/src/main/java/org/apache/commons/lang3/ClassUtils.java
index 6a864efdf..de71e91a8 100644
--- a/src/main/java/org/apache/commons/lang3/ClassUtils.java
+++ b/src/main/java/org/apache/commons/lang3/ClassUtils.java
@@ -1521,7 +1521,7 @@ public class ClassUtils {
             final Iterator<Class<?>> wrapped = classes.iterator();
 
             return new Iterator<Class<?>>() {
-                Iterator<Class<?>> interfaces = Collections.<Class<?>>emptySet().iterator();
+                Iterator<Class<?>> interfaces = Collections.emptyIterator();
 
                 @Override
                 public boolean hasNext() {