diff --git a/cogs/commands/data_management.py b/cogs/commands/data_management.py
index bef3213..0898229 100644
--- a/cogs/commands/data_management.py
+++ b/cogs/commands/data_management.py
@@ -113,10 +113,10 @@ class DataManagementCog(commands.Cog, name="Table Management"):
         stmt = select(Category.CategoryName).where(Category.CategoryId == int(category_id))
         category_name = session.scalar(stmt)
 
-        stmt = select(Score).where(Score.CategoryId == int(category_id))
+        stmt = select(Score).where(Score.CategoryId == int(category_id)).where(Score.UserName == user_name)
 
-        for score in session.scalars(stmt):
-            session.delete(score)
+        # there should only be one because category id and username are a composite primary key in score
+        session.delete(session.scalar(stmt))
         session.commit()
 
         await send_highscore_message(interaction.guild.get_channel(group.ChannelId), group)
diff --git a/utilities/utils.py b/utilities/utils.py
index 470e556..dd30f44 100644
--- a/utilities/utils.py
+++ b/utilities/utils.py
@@ -48,9 +48,7 @@ def autofill_categories(guild_id: int, group_id: int, category_begin: str) -> "d
     # else find all categories that start with category_begin
     # TODO is it better to have sql handle the starts with or python?
     categories: dict = {
-        cat_name: cat_id
-        for cat_name, cat_id in categories_dict.items()
-        if category_begin.lower() in cat_name.CategoryName.lower()
+        cat_name: cat_id for cat_name, cat_id in categories_dict.items() if category_begin.lower() in cat_name.lower()
     }
     return categories