diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml
index da10788e96..5861861c61 100644
--- a/docs/sample_config.yaml
+++ b/docs/sample_config.yaml
@@ -1352,3 +1352,18 @@ password_config:
 #  module: "my_custom_project.SuperRulesSet"
 #  config:
 #    example_option: 'things'
+
+
+## Tracer ##
+
+#tracer:
+#  # Enable / disable tracer
+#  tracer_enabled: false
+#  # The list of users who's requests will be traced
+#  # The list is a list of regex which is matched against the user_id
+#  user_whitelist:
+#    - "*"
+#  # The list of homeservers we wish to trace across
+#  # The list is a list of regex which is matched against the homeserver name
+#  homeserver_whitelist:
+#    - "*"
diff --git a/synapse/config/tracer.py b/synapse/config/tracer.py
index 5eab97ef8a..9df9f9c64e 100644
--- a/synapse/config/tracer.py
+++ b/synapse/config/tracer.py
@@ -47,17 +47,17 @@ class TracerConfig(Config):
         return """\
         ## Tracer ##
 
-        tracer:
-          # Enable / disable tracer
-          tracer_enabled: false
-          # The list of users who's requests will be traced
-          # The list is a list of regex which is matched against the user_id
-          user_whitelist:
-            - "*"
-          # The list of homeservers we wish to trace across
-          # The list is a list of regex which is matched against the homeserver name
-          homeserver_whitelist:
-            - "*"
+        #tracer:
+        #  # Enable / disable tracer
+        #  tracer_enabled: false
+        #  # The list of users who's requests will be traced
+        #  # The list is a list of regex which is matched against the user_id
+        #  user_whitelist:
+        #    - "*"
+        #  # The list of homeservers we wish to trace across
+        #  # The list is a list of regex which is matched against the homeserver name
+        #  homeserver_whitelist:
+        #    - "*"
         """