diff --git a/src/main/java/com/loafle/commons/rpc/registry/RPCRegistry.java b/src/main/java/com/loafle/commons/rpc/registry/RPCRegistry.java
index 4bceed0..c16662f 100644
--- a/src/main/java/com/loafle/commons/rpc/registry/RPCRegistry.java
+++ b/src/main/java/com/loafle/commons/rpc/registry/RPCRegistry.java
@@ -52,7 +52,7 @@ public class RPCRegistry implements RPCInvoker {
 
 	@Override
 	public boolean hasMethod(String method) {
-    String[] sm = method.split(".");
+    String[] sm = method.split("\\.");
 
     if (null == sm || 2 != sm.length) {
       return false;
@@ -71,7 +71,7 @@ public class RPCRegistry implements RPCInvoker {
 	public Object invoke(RPCRegistryCodec codec) throws RPCException {
 		String method = codec.method();
 
-    String[] sm = method.split(".");
+    String[] sm = method.split("\\.");
 
     if (null == sm || 2 != sm.length) {
       throw new RPCException(String.format("method[%s] is not valid", method));