Fix a rat audit problem.
diff --git a/tajo-project/pom.xml b/tajo-project/pom.xml
index 27fa66b..7d2c649 100644
--- a/tajo-project/pom.xml
+++ b/tajo-project/pom.xml
@@ -653,6 +653,11 @@
             </goals>
           </execution>
         </executions>
+        <configuration>
+          <excludes>
+            <exclude>src/site/**/*.html</exclude>
+          </excludes>
+        </configuration>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>