diff --git a/src/main/resources/io/netty/checkstyle.xml b/src/main/resources/io/netty/checkstyle.xml
index 141bec4..ff46b9f 100644
--- a/src/main/resources/io/netty/checkstyle.xml
+++ b/src/main/resources/io/netty/checkstyle.xml
@@ -69,7 +69,6 @@
       <property name="allowInSwitchCase" value="true"/>
     </module>
     <module name="FinalClass"/>
-    <module name="InterfaceIsType"/>
     <module name="HideUtilityClassConstructor"/>
     <module name="CovariantEquals"/>
     <module name="DoubleCheckedLocking"/>