diff --git a/modules/pref/src/main/JsonView.scala b/modules/pref/src/main/JsonView.scala
index b0db946c60c4b..94e758bcb4e6f 100644
--- a/modules/pref/src/main/JsonView.scala
+++ b/modules/pref/src/main/JsonView.scala
@@ -24,6 +24,7 @@ object JsonView:
       "clockSound"    -> p.clockSound,
       "premove"       -> p.premove,
       "animation"     -> p.animation,
+      "pieceNotation" -> p.pieceNotation,
       "captured"      -> p.captured,
       "follow"        -> p.follow,
       "highlight"     -> p.highlight,
diff --git a/modules/pref/src/main/PrefForm.scala b/modules/pref/src/main/PrefForm.scala
index d655c80980e35..86614995e0bb8 100644
--- a/modules/pref/src/main/PrefForm.scala
+++ b/modules/pref/src/main/PrefForm.scala
@@ -48,6 +48,7 @@ object PrefForm:
     val confirmResign = "confirmResign" -> checkedNumber(Pref.ConfirmResign.choices)
     val moretime      = "moretime"      -> checkedNumber(Pref.Moretime.choices)
     val clockSound    = "clockSound"    -> booleanNumber
+    val pieceNotation = "pieceNotation" -> booleanNumber
     val ratings       = "ratings"       -> booleanNumber
     val flairs        = "flairs"        -> boolean
     val follow        = "follow"        -> booleanNumber
diff --git a/modules/pref/src/main/PrefSingleChange.scala b/modules/pref/src/main/PrefSingleChange.scala
index e4c9a270b5b30..8ff4c9e638858 100644
--- a/modules/pref/src/main/PrefSingleChange.scala
+++ b/modules/pref/src/main/PrefSingleChange.scala
@@ -53,6 +53,8 @@ object PrefSingleChange:
       _.copy(moretime = v),
     changing(_.clockSound): v =>
       _.copy(clockSound = v == 1),
+    changing(_.pieceNotation): v =>
+      _.copy(pieceNotation = v),
     changing(_.ratings): v =>
       _.copy(ratings = v),
     changing(_.follow): v =>