diff --git a/src/ezbot_robot/launch/real_robot.launch.py b/src/ezbot_robot/launch/real_robot.launch.py
index 1835d20..21ac4e7 100644
--- a/src/ezbot_robot/launch/real_robot.launch.py
+++ b/src/ezbot_robot/launch/real_robot.launch.py
@@ -111,7 +111,7 @@ def generate_launch_description():
 
     delayed_imu_filter = TimerAction(
         period=5.0,
-        action = [imu_complementary_filter],
+        actions = [imu_complementary_filter],
     )