diff --git a/cassandra-storage/pom.xml b/cassandra-storage/pom.xml
index 9b93a06acba..3b19346267f 100644
--- a/cassandra-storage/pom.xml
+++ b/cassandra-storage/pom.xml
@@ -20,7 +20,7 @@
 
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>io.druid</groupId>
+    <groupId>io.druid.extensions</groupId>
     <artifactId>druid-cassandra-storage</artifactId>
     <name>druid-cassandra-storage</name>
     <description>druid-cassandra-storage</description>
diff --git a/hdfs-storage/pom.xml b/hdfs-storage/pom.xml
index 1a7ed8b631d..636643606f7 100644
--- a/hdfs-storage/pom.xml
+++ b/hdfs-storage/pom.xml
@@ -21,7 +21,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>io.druid</groupId>
+    <groupId>io.druid.extensions</groupId>
     <artifactId>druid-hdfs-storage</artifactId>
     <name>druid-hdfs-storage</name>
     <description>druid-hdfs-storage</description>
diff --git a/s3-extensions/pom.xml b/s3-extensions/pom.xml
index b114dff74ff..536f16de53e 100644
--- a/s3-extensions/pom.xml
+++ b/s3-extensions/pom.xml
@@ -20,7 +20,7 @@
 
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>io.druid</groupId>
+    <groupId>io.druid.extensions</groupId>
     <artifactId>druid-s3-extensions</artifactId>
     <name>druid-s3-extensions</name>
     <description>druid-s3-extensions</description>
diff --git a/server/src/main/java/io/druid/initialization/Initialization.java b/server/src/main/java/io/druid/initialization/Initialization.java
index 5a052b589fe..9783af60f9d 100644
--- a/server/src/main/java/io/druid/initialization/Initialization.java
+++ b/server/src/main/java/io/druid/initialization/Initialization.java
@@ -113,14 +113,14 @@ public class Initialization
     }
 
     for (String coordinate : config.getCoordinates()) {
-      log.info("Loading extension[%s]", coordinate);
+      log.info("Loading extension[%s] for class[%s]", coordinate, clazz.getName());
       try {
         URLClassLoader loader = getClassLoaderForCoordinates(aether, coordinate);
 
         final ServiceLoader<T> serviceLoader = ServiceLoader.load(clazz, loader);
 
         for (T module : serviceLoader) {
-          log.info("Adding extension module[%s]", module.getClass());
+          log.info("Adding extension module[%s] for class[%s]", module.getClass(), clazz.getName());
           retVal.add(module);
         }
       }