diff --git a/src/github.com/matrix-org/dendrite/clientapi/auth/auth.go b/src/github.com/matrix-org/dendrite/clientapi/auth/auth.go
index ba78f98be..5a74f3f46 100644
--- a/src/github.com/matrix-org/dendrite/clientapi/auth/auth.go
+++ b/src/github.com/matrix-org/dendrite/clientapi/auth/auth.go
@@ -42,7 +42,7 @@ type DeviceDatabase interface {
 	GetDeviceByAccessToken(ctx context.Context, token string) (*authtypes.Device, error)
 }
 
-// AccountDatabase represents a account database.
+// AccountDatabase represents an account database.
 type AccountDatabase interface {
 	// Look up the account matching the given localpart.
 	GetAccountByLocalpart(ctx context.Context, localpart string) (*authtypes.Account, error)