diff --git a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/codestyle/ClassNamingConventionsRule.java b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/codestyle/ClassNamingConventionsRule.java
index 7ecb33a569..72568c892a 100644
--- a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/codestyle/ClassNamingConventionsRule.java
+++ b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/codestyle/ClassNamingConventionsRule.java
@@ -31,7 +31,7 @@ public class ClassNamingConventionsRule extends AbstractJavaRule {
     private static final RegexProperty INTERFACE_REGEX = defaultProp("interface").build();
     private static final RegexProperty ENUMERATION_REGEX = defaultProp("enum").build();
     private static final RegexProperty ANNOTATION_REGEX = defaultProp("annotation").build();
-    private static final RegexProperty UTILITY_CLASS_REGEX = defaultProp("utility class").defaultValue("[A-Z][a-zA-Z0-9]+Util").build();
+    private static final RegexProperty UTILITY_CLASS_REGEX = defaultProp("utility class").defaultValue("[A-Z][a-zA-Z0-9]+Utils?").build();
 
 
     public ClassNamingConventionsRule() {
diff --git a/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/codestyle/xml/ClassNamingConventions.xml b/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/codestyle/xml/ClassNamingConventions.xml
index 179c12384c..f83066bfed 100644
--- a/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/codestyle/xml/ClassNamingConventions.xml
+++ b/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/codestyle/xml/ClassNamingConventions.xml
@@ -53,7 +53,7 @@
         <description>Utility class convention</description>
         <expected-problems>1</expected-problems>
         <expected-messages>
-            <message>The utility class name 'Foo' doesn't match '[A-Z][a-zA-Z0-9]+Util'</message>
+            <message>The utility class name 'Foo' doesn't match '[A-Z][a-zA-Z0-9]+Utils?'</message>
         </expected-messages>
         <code><![CDATA[
             public class Foo {
@@ -144,7 +144,7 @@
         <description>Class with only static members except constructors should be a utility class</description>
         <expected-problems>1</expected-problems>
         <expected-messages>
-            <message>The utility class name 'Foo' doesn't match '[A-Z][a-zA-Z0-9]+Util'</message>
+            <message>The utility class name 'Foo' doesn't match '[A-Z][a-zA-Z0-9]+Utils?'</message>
         </expected-messages>
         <code><![CDATA[
             public class Foo {