diff -x .svn -upr org/anthy-utf8.scm mod/anthy-utf8.scm
--- org/anthy-utf8.scm	2020-08-08 11:04:51.000000000 +0900
+++ mod/anthy-utf8.scm	2020-11-26 23:00:03.956610000 +0900
@@ -750,7 +750,7 @@
 				    (charcode->string key))
 				(if (symbol? key)
 				    (symbol->string key)
-				    (charcode->string (ichar-downcase key)))))
+				    (charcode->string key))))
 		   (res (rk-push-key! rkc key-str)))
 	      (if res
 		  (begin
@@ -1306,7 +1306,7 @@
 				    (charcode->string key))
 				(if (symbol? key)
 				    (symbol->string key)
-				    (charcode->string (ichar-downcase key)))))
+				    (charcode->string key))))
 		   (pend (rk-pending rkc))
 		   (res (rk-push-key! rkc key-str)))
 	      (if (and res
diff -x .svn -upr org/anthy.scm mod/anthy.scm
--- org/anthy.scm	2020-08-08 11:04:51.000000000 +0900
+++ mod/anthy.scm	2020-11-26 23:00:42.793119000 +0900
@@ -747,7 +747,7 @@
 				    (charcode->string key))
 				(if (symbol? key)
 				    (symbol->string key)
-				    (charcode->string (ichar-downcase key)))))
+				    (charcode->string key))))
 		   (res (rk-push-key! rkc key-str)))
 	      (if res
 		  (begin
@@ -1303,7 +1303,7 @@
 				    (charcode->string key))
 				(if (symbol? key)
 				    (symbol->string key)
-				    (charcode->string (ichar-downcase key)))))
+				    (charcode->string key))))
 		   (pend (rk-pending rkc))
 		   (res (rk-push-key! rkc key-str)))
 	      (if (and res