1 files changed, 2 insertions, 0 deletions
diff --git a/ext/mixed/js/japanese.js b/ext/mixed/js/japanese.js
index 23b2bd36..c9bc7b87 100644
--- a/ext/mixed/js/japanese.js
+++ b/ext/mixed/js/japanese.js
@@ -80,6 +80,8 @@ function jpConvertReading(expressionFragment, readingFragment, readingMode) {
                 }
             }
             return readingFragment;
+        case 'none':
+            return null;
         default:
             return readingFragment;
     }