diff --git a/src/conf/checkstyle.xml b/src/conf/checkstyle.xml
index 1db570bc0..8ce9863ca 100644
--- a/src/conf/checkstyle.xml
+++ b/src/conf/checkstyle.xml
@@ -122,6 +122,12 @@
       <property name="commentFormat" value="CHECKSTYLE IGNORE (\w+)" />
       <property name="checkFormat" value="$1" />
     </module>
+    <module name="ImportOrder">
+      <property name="option" value="top"/>
+      <property name="groups" value="java,javax,org"/>
+      <property name="ordered" value="true"/>
+      <property name="separated" value="true"/>
+    </module>
 
   </module>