diff --git a/CHANGES.md b/CHANGES.md
index d23166caa8..7eab35be30 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -21,7 +21,7 @@ Bugfixes
 - Re-order stages in registration flows such that msisdn and email verification are done last. ([\#5174](https://github.com/matrix-org/synapse/issues/5174))
 - Fix 3pid guest invites. ([\#5177](https://github.com/matrix-org/synapse/issues/5177))
 - Fix a bug where the register endpoint would fail with M_THREEPID_IN_USE instead of returning an account previously registered in the same session. ([\#5187](https://github.com/matrix-org/synapse/issues/5187))
-- Prevent registration for user ids that are to long to fit into a state key. Contributed by Reid Anderson. ([\#5198](https://github.com/matrix-org/synapse/issues/5198))
+- Prevent registration for user ids that are too long to fit into a state key. Contributed by Reid Anderson. ([\#5198](https://github.com/matrix-org/synapse/issues/5198))
 - Fix incompatibility between ACME support and Python 3.5.2. ([\#5218](https://github.com/matrix-org/synapse/issues/5218))
 - Fix error handling for rooms whose versions are unknown. ([\#5219](https://github.com/matrix-org/synapse/issues/5219))