diff --git a/src/darwin_dyn_master.c b/src/darwin_dyn_master.c
index e7803ebc9132451f8721b3d36ee3781c3ab2219f..cfd42e94568899d7276418e7a030b756656f322e 100755
--- a/src/darwin_dyn_master.c
+++ b/src/darwin_dyn_master.c
@@ -80,7 +80,7 @@ TDynamixelMaster *darwin_dyn_master_init(void)
   darwin_dyn_master.disable_power=darwin_dyn_master_disable_power;
 
   /* configure dynamixel master module */
-  dyn_master_set_rx_timeout(&darwin_dyn_master,50);
+  dyn_master_set_rx_timeout(&darwin_dyn_master,5);
   dyn_master_set_return_level(&darwin_dyn_master,return_all);
 
   return &darwin_dyn_master;
diff --git a/src/darwin_dyn_master2.c b/src/darwin_dyn_master2.c
index 6265896a838071a21e7a9c921b8f3fe28880aaf9..53301bb0fea20a7ace9016b60c19c17792ddf54f 100755
--- a/src/darwin_dyn_master2.c
+++ b/src/darwin_dyn_master2.c
@@ -84,7 +84,7 @@ TDynamixelMaster *darwin_dyn_master2_init(void)
   darwin_dyn_master2.disable_power=darwin_dyn_master2_disable_power;
 
   /* configure dynamixel master module */
-  dyn_master_set_rx_timeout(&darwin_dyn_master2,50);
+  dyn_master_set_rx_timeout(&darwin_dyn_master2,5);
   dyn_master_set_return_level(&darwin_dyn_master2,return_all);
 
   return &darwin_dyn_master2;