diff --git a/02_IntroductionToROS/README.md b/02_IntroductionToROS/README.md
index adec7fb63b3863b2b7d3847ca4f53f4f52e5aa0f..8c538262230229f374799ac48e105240fe622794 100644
--- a/02_IntroductionToROS/README.md
+++ b/02_IntroductionToROS/README.md
@@ -157,7 +157,7 @@ Inside the package *exercise_1* we will now create a `node` that **publishes** `
     import rospy
     from geometry_msgs.msg import Twist
 
-    def turtle_go()
+    def turtle_go():
         pub = rospy.Publisher('/turtle1/cmd_vel', Twist, queue_size=10)
         rospy.init_node('turtle_go', anonymous=True)
         rate = rospy.Rate(10) # 10Hz