diff --git a/tracetools_analysis/launch/profile.launch.py b/tracetools_analysis/launch/profile.launch.py
index 0c97575..a31c6ae 100644
--- a/tracetools_analysis/launch/profile.launch.py
+++ b/tracetools_analysis/launch/profile.launch.py
@@ -36,7 +36,7 @@ def generate_launch_description():
             events_kernel=[
                 'sched_switch',
             ],
-            context_names={
+            context_fields={
                 'kernel': DEFAULT_CONTEXT,
                 'userspace': DEFAULT_CONTEXT + ['ip'],
             },