diff --git a/src/Guide/Handlers.hs b/src/Guide/Handlers.hs
index 31433da..ae4cb31 100644
--- a/src/Guide/Handlers.hs
+++ b/src/Guide/Handlers.hs
@@ -244,14 +244,14 @@ setMethods = Spock.subcomponent "set" $ do
           ("modified" :: Text, modified),
           ("merged" :: Text, merge original content' modified)]
   -- Trait
-  Spock.post (itemVar <//> categoryVar <//> traitVar) $ \itemId catId traitId -> do
+  Spock.post (itemVar <//> traitVar) $ \itemId traitId -> do
     original <- param' "original"
     content' <- param' "content"
     modified <- view (content.mdText) <$> dbQuery (GetTrait itemId traitId)
     if modified == original
       then do
         trait <- uncache (CacheItemTraits itemId) $ do
-          (edit, trait) <- dbUpdate (SetTraitContent itemId catId traitId content')
+          (edit, trait) <- dbUpdate (SetTraitContent itemId traitId content')
           addEdit edit
           return trait
         lucidIO $ renderTrait itemId trait
diff --git a/src/Guide/ServerStuff.hs b/src/Guide/ServerStuff.hs
index 70e20bc..7a6e59c 100644
--- a/src/Guide/ServerStuff.hs
+++ b/src/Guide/ServerStuff.hs
@@ -231,11 +231,11 @@ undoEdit (Edit'SetItemEcosystem itemId old new) = do
   if now /= new
     then return (Left "ecosystem has been changed further")
     else Right () <$ dbUpdate (SetItemEcosystem itemId old)
-undoEdit (Edit'SetTraitContent itemId catId traitId old new) = do
+undoEdit (Edit'SetTraitContent itemId traitId old new) = do
   now <- view (content.mdText) <$> dbQuery (GetTrait itemId traitId)
   if now /= new
     then return (Left "trait has been changed further")
-    else Right () <$ dbUpdate (SetTraitContent itemId catId traitId old)
+    else Right () <$ dbUpdate (SetTraitContent itemId traitId old)
 undoEdit (Edit'DeleteCategory catId pos) = do
   dbUpdate (RestoreCategory catId pos)
 undoEdit (Edit'DeleteItem itemId pos) = do
@@ -291,7 +291,7 @@ invalidateCacheForEdit ed = do
         [CacheItemNotes itemId]
     Edit'SetItemEcosystem itemId _ _ ->
         [CacheItemEcosystem itemId]
-    Edit'SetTraitContent itemId _ _ _ _ ->
+    Edit'SetTraitContent itemId _ _ _ ->
         [CacheItemTraits itemId]
     Edit'DeleteCategory catId _ ->
         [CacheCategory catId]
diff --git a/src/Guide/State.hs b/src/Guide/State.hs
index 41a6b9d..a4a2024 100644
--- a/src/Guide/State.hs
+++ b/src/Guide/State.hs
@@ -456,11 +456,11 @@ setItemEcosystem itemId ecosystem' = do
                (oldEcosystem ^. mdText) ecosystem'
   (edit,) <$> use (itemById itemId)
 
-setTraitContent :: Uid Item -> Uid Category -> Uid Trait -> Text -> Acid.Update GlobalState (Edit, Trait)
-setTraitContent itemId catId traitId content' = do
+setTraitContent :: Uid Item -> Uid Trait -> Text -> Acid.Update GlobalState (Edit, Trait)
+setTraitContent itemId traitId content' = do
   oldContent <- itemById itemId . traitById traitId . content <<.=
                   toMarkdownInline content'
-  let edit = Edit'SetTraitContent  itemId catId traitId
+  let edit = Edit'SetTraitContent itemId traitId
                (oldContent ^. mdText) content'
   (edit,) <$> use (itemById itemId . traitById traitId)
 
diff --git a/src/Guide/Types/Edit.hs b/src/Guide/Types/Edit.hs
index 6925907..8576fc7 100644
--- a/src/Guide/Types/Edit.hs
+++ b/src/Guide/Types/Edit.hs
@@ -106,7 +106,6 @@ data Edit
   -- Change trait properties
   | Edit'SetTraitContent {
       editItemUid         :: Uid Item,
-      editCategoryUid     :: Uid Category,
       editTraitUid        :: Uid Trait,
       editTraitContent    :: Text,
       editTraitNewContent :: Text }
diff --git a/src/Guide/Views.hs b/src/Guide/Views.hs
index 0dc3fb8..48fab6d 100644
--- a/src/Guide/Views.hs
+++ b/src/Guide/Views.hs
@@ -390,9 +390,9 @@ renderEdit globalState edit = do
     -- Add
     Edit'AddCategory _catId title' -> p_ $ do
       "added category " >> quote (toHtml title')
-    Edit'AddItem catId _itemId _ -> p_ $ do
+    Edit'AddItem catId _itemId name' -> p_ $ do
       "added item " >> printItem _itemId
-
+      " (initially called " >> quote (toHtml name') >> ")"
       " to category " >> printCategory catId
     Edit'AddPro itemId _traitId content' -> do
       p_ $ "added pro to item " >> printItem itemId
@@ -473,9 +473,10 @@ renderEdit globalState edit = do
         td_ $ blockquote_ $ toHtml (toMarkdownBlock newEcosystem)
 
     -- Change trait properties
-    Edit'SetTraitContent  itemId catId _traitId oldContent newContent -> do
+    Edit'SetTraitContent itemId _traitId oldContent newContent -> do
       p_ $ (if T.null oldContent then "added" else "changed") >>
-           " trait of item " >> printItem itemId >> " from category " >> printCategory catId
+           " trait of item " >> printItem itemId >>
+           " from category " >> printCategory (findItem itemId ^. _1.uid)
       table_ $ tr_ $ do
         unless (T.null oldContent) $
           td_ $ blockquote_ $ p_ (toHtml (toMarkdownInline oldContent))