diff --git a/src/plugins/coreplugin/idocument.h b/src/plugins/coreplugin/idocument.h
index 31782683898..7c8040e697e 100644
--- a/src/plugins/coreplugin/idocument.h
+++ b/src/plugins/coreplugin/idocument.h
@@ -51,12 +51,6 @@ public:
         IgnoreAll = 2
     };
 
-    enum Utf8BomSetting {
-        AlwaysAdd = 0,
-        OnlyKeep = 1,
-        AlwaysDelete = 2
-    };
-
     enum ChangeTrigger {
         TriggerInternal,
         TriggerExternal