diff --git a/pom.xml b/pom.xml
index 27c504924..7f544d500 100644
--- a/pom.xml
+++ b/pom.xml
@@ -155,7 +155,6 @@
                     <instrumentation>
                         <excludes>
                             <exclude>com/a/eye/skywalking/trace/proto/*.class</exclude>
-                            <exclude>com/a/eye/skywalking/sniffer/mock/**/*.class</exclude>
                         </excludes>
                     </instrumentation>
                 </configuration>