diff --git a/pub/share/wups11a.ps b/pub/share/wups11a.ps
index ab55d49fc7c3cbb32a0ef8b861d1a44b505adb0e..9e05a27786c81fa774a8fd21b6693b688809dbb8 100644
--- a/pub/share/wups11a.ps
+++ b/pub/share/wups11a.ps
@@ -1458,6 +1458,7 @@ WuGdict11a begin
           supsc (-1) endsc (\)) showif } bind def
 /inGHzr { showif (\(GHz) (-1) sp (\)) showif } def
 
+%% home-made Angstr is obsolete; use \375 or Å
 /Angstr {
    showif
    (A) .5 1.23 {