diff --git a/media/WEB+DB_PRESS.yml b/media/WEB+DB_PRESS.yml
index f5bf38e..ed5efbc 100644
--- a/media/WEB+DB_PRESS.yml
+++ b/media/WEB+DB_PRESS.yml
@@ -1063,7 +1063,7 @@ rules:
       - 元々
       - 本々
     expected: もともと
-  - pattern: /基([^数準盤板底礎本])/
+  - pattern: /基([^数準盤板底礎本づ])/
     expected: もと$1
   - pattern: /([^追])及び/
     expected: $1および