diff --git a/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java b/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java
index a94a38b..e5382e1 100644
--- a/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java
+++ b/utils/netty/src/main/java/org/onlab/netty/MessageDecoder.java
@@ -15,8 +15,6 @@
  */
 package org.onlab.netty;
 
-import static com.google.common.base.Preconditions.checkState;
-
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.ReplayingDecoder;
@@ -31,6 +29,9 @@
 
 import com.google.common.base.Charsets;
 
+import static com.google.common.base.Preconditions.checkState;
+import static org.onlab.util.SonarSuppressionConstants.SONAR_SWITCH_FALLTHROUGH;
+
 /**
  * Decoder for inbound messages.
  */
@@ -54,7 +55,7 @@
     }
 
     @Override
-    @java.lang.SuppressWarnings("squid:S128") // suppress switch fall through warning
+    @java.lang.SuppressWarnings(SONAR_SWITCH_FALLTHROUGH) // suppress switch fall through warning
     protected void decode(
             ChannelHandlerContext context,
             ByteBuf buffer,