diff --git a/src/tf2_data/__init__.py b/src/tf2_data/__init__.py
index c5dead3..cc594c0 100644
--- a/src/tf2_data/__init__.py
+++ b/src/tf2_data/__init__.py
@@ -1,6 +1,6 @@
 __title__ = "tf2-data"
 __author__ = "offish"
-__version__ = "0.0.3"
+__version__ = "0.0.4"
 __license__ = "MIT"
 
 from .schema import Schema, SchemaItems, IEconItems
diff --git a/src/tf2_data/schema.py b/src/tf2_data/schema.py
index 48dcb10..e5108e7 100644
--- a/src/tf2_data/schema.py
+++ b/src/tf2_data/schema.py
@@ -88,11 +88,13 @@ def map_defindex_name(self) -> dict:
             defindex = item["defindex"]
 
             # map both ways for ease of use
-            data[defindex] = name
+            # defindex as key is str
+            data[str(defindex)] = name
 
             # map name to all defindexes
             # e.g. mann co key has multiple defindexes
             if name not in data:
+                # defindex as value are ints
                 data[name] = [defindex]
             else:
                 data[name] += [defindex]