diff --git a/spec/index.bs b/spec/index.bs
index 84f2e908..10d74875 100644
--- a/spec/index.bs
+++ b/spec/index.bs
@@ -2135,7 +2135,7 @@ The [=remote end steps=] are:
     [=error code=] [=no such alert=].
 
 1. Let |type| be a string that is "`AutoReauthn`" if the user is being [=auto-reauthenticated=],
-    or "`AccountChooser`" is the dialog is an account chooser, or "`ConfirmIdpLogin`" if the
+    or "`AccountChooser`" if the dialog is an account chooser, or "`ConfirmIdpLogin`" if the
     dialog is a [=confirm IDP login dialog=].
 
 1. Return [=success=] with data |type|.