diff --git a/css-env-1/Overview.bs b/css-env-1/Overview.bs
index e5af867b80f..9360aa5de9b 100644
--- a/css-env-1/Overview.bs
+++ b/css-env-1/Overview.bs
@@ -253,7 +253,7 @@ would cause text sizes to double,
 then ''env(preferred-text-scale)'' would resolve to ''2''.
 
 Note: The ''pem'' unit represents this same information;
-''1em'' is exactly equivalent to ''calc(1em * env(preferred-text-scale))''.
+''1pem'' is exactly equivalent to ''calc(1em * env(preferred-text-scale))''.
 When directly sizing things, ''bsem'' is just a more convenient length to use.
 
 <div class=example>