diff --git a/unicodedomino_compat.def b/unicodedomino_compat.def
index bedde489ce3c6f57027a6c4af82541677e6ad6e6..8e81e8c5cb60f3f042b80784a244b408156fc188 100644
--- a/unicodedomino_compat.def
+++ b/unicodedomino_compat.def
@@ -34,7 +34,7 @@
  }%
 \fi%
 
-% added in v1.2e 2018/09/30(?)
+% added in v1.2e 2018/09/28
 \ifx\UTFviii@hexcodepoint\@undefined%
  % override message to format the codepoint correctly
  \gdef\UTFviii@splitcsname#1:#2\relax{%