diff --git a/launch_ros/launch_ros/actions/node.py b/launch_ros/launch_ros/actions/node.py
index c5c1b85e..8d7377e9 100644
--- a/launch_ros/launch_ros/actions/node.py
+++ b/launch_ros/launch_ros/actions/node.py
@@ -143,7 +143,7 @@ def __init__(
 
         The launch_ros.substitutions.ExecutableInPackage substitution is used
         to find the executable at runtime, so this Action also raise the
-        exceptions that substituion can raise when the package or executable
+        exceptions that substitution can raise when the package or executable
         are not found.
 
         If the name is not given (or is None) then no name is passed to