fix #106
diff --git a/dubbo-registry-simple/pom.xml b/dubbo-registry-simple/pom.xml
index 011aecd..6318fe7 100644
--- a/dubbo-registry-simple/pom.xml
+++ b/dubbo-registry-simple/pom.xml
@@ -38,6 +38,10 @@
             <groupId>org.mortbay.jetty</groupId>
             <artifactId>jetty</artifactId>
         </dependency>
+        <dependency>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+        </dependency>
     </dependencies>
     <build>
         <plugins>