diff --git a/launch/simulation_and_controller.launch.yaml b/launch/simulation_and_controller.launch.yaml
index e9cf30b..99c9ef2 100644
--- a/launch/simulation_and_controller.launch.yaml
+++ b/launch/simulation_and_controller.launch.yaml
@@ -7,12 +7,6 @@ launch:
     pkg: "tb3_controller_cpp"
     exec: "tb3_controller_node"
     param:
-    -
-      name: "Kp"
-      value: 1.0
-    -
-      name: "T"
-      value: 0.001
-    -
-      name: "init_xd"
-      value: 1.0
\ No newline at end of file
+    - { name: "Kp", value: 1.0}
+    - { name: "T",  value: 0.01}
+    - { name: "init_xd", value: 1.0}
\ No newline at end of file
diff --git a/launch/turtlebot3_and_controller.launch.yaml b/launch/turtlebot3_and_controller.launch.yaml
index 10783b7..01535e7 100644
--- a/launch/turtlebot3_and_controller.launch.yaml
+++ b/launch/turtlebot3_and_controller.launch.yaml
@@ -7,12 +7,6 @@ launch:
     pkg: "tb3_controller_cpp"
     exec: "tb3_controller_node"
     param:
-    -
-      name: "Kp"
-      value: 1.0
-    -
-      name: "T"
-      value: 0.001
-    -
-      name: "init_xd"
-      value: 1.0
\ No newline at end of file
+    - { name: "Kp", value: 1.0}
+    - { name: "T",  value: 0.01}
+    - { name: "init_xd", value: 1.0}
\ No newline at end of file