diff --git a/changelog.d/4387.misc b/changelog.d/4387.misc
new file mode 100644
index 0000000000..0c04a0fa9b
--- /dev/null
+++ b/changelog.d/4387.misc
@@ -0,0 +1 @@
+Fix a comment in the generated config file
diff --git a/synapse/config/key.py b/synapse/config/key.py
index 3b11f0cfa9..dce4b19a2d 100644
--- a/synapse/config/key.py
+++ b/synapse/config/key.py
@@ -83,9 +83,6 @@ class KeyConfig(Config):
         # a secret which is used to sign access tokens. If none is specified,
         # the registration_shared_secret is used, if one is given; otherwise,
         # a secret key is derived from the signing key.
-        #
-        # Note that changing this will invalidate any active access tokens, so
-        # all clients will have to log back in.
         %(macaroon_secret_key)s
 
         # Used to enable access token expiration.