diff --git a/rois_bringup/launch/navigation.launch b/rois_bringup/launch/navigation.launch
index ae2601d584335f65dbfc80ec3a90a78290b37111..98a3dedf2364e72ec24e43617cf69172cf7757ee 100644
--- a/rois_bringup/launch/navigation.launch
+++ b/rois_bringup/launch/navigation.launch
@@ -44,6 +44,24 @@
     <arg
       name="world_name"
       value="$(find rois_description)/world/$(arg world_name).sdf" />
+    <arg
+      name="robot1_init_x"
+      default="$(arg robot1_init_x)" />
+    <arg
+      name="robot1_init_y"
+      default="$(arg robot1_init_y)" />
+    <arg
+      name="robot2_init_x"
+      default="$(arg robot2_init_x)" />
+    <arg
+      name="robot2_init_y"
+      default="$(arg robot2_init_y)" />
+    <arg
+      name="robot3_init_x"
+      default="$(arg robot3_init_x)" />
+    <arg
+      name="robot3_init_y"
+      default="$(arg robot3_init_y)" />
   </include>
 
   <group ns="robot1">
diff --git a/rois_gazebo/launch/setup_gazebo.launch b/rois_gazebo/launch/setup_gazebo.launch
index 99fb925a5a4ef0d774e57621c90bc1ef27355eba..c144292cb2e76af85caa64926f839f13d7202c3b 100644
--- a/rois_gazebo/launch/setup_gazebo.launch
+++ b/rois_gazebo/launch/setup_gazebo.launch
@@ -8,6 +8,24 @@
   <arg
     name="use_multi_robot"
     default="true" />
+  <arg
+    name="robot1_init_x"
+    default="0" />
+  <arg
+    name="robot1_init_y"
+    default="0" />
+  <arg
+    name="robot2_init_x"
+    default="10" />
+  <arg
+    name="robot2_init_y"
+    default="0" />
+  <arg
+    name="robot3_init_x"
+    default="0" />
+  <arg
+    name="robot3_init_y"
+    default="10" />
 
   <include file="$(find gazebo_ros)/launch/empty_world.launch">
     <arg 
@@ -21,10 +39,10 @@
       value="robot1"/>
     <arg
       name="init_x"
-      value="0" />
+      value="$(arg robot1_init_x)" />
     <arg
       name="init_y"
-      value="0" />
+      value="$(arg robot1_init_y)" />
   </include>
 
   <group if="$(arg use_multi_robot)">
@@ -34,10 +52,10 @@
         value="robot2"/>
       <arg
         name="init_x"
-        value="10" />
+        value="$(arg robot2_init_x)" />
       <arg
         name="init_y"
-        value="0" />
+        value="$(arg robot2_init_y)" />
     </include>
 
     <include file="$(find rois_gazebo)/launch/spawn_model.launch">
@@ -46,10 +64,10 @@
         value="robot3"/>
       <arg
         name="init_x"
-        value="0" />
+        value="$(arg robot3_init_x)" />
       <arg
         name="init_y"
-        value="10" />
+        value="$(arg robot3_init_y)" />
     </include>
   </group>