diff --git a/json_serialization/std/tables.nim b/json_serialization/std/tables.nim
index 39e3cef..c33ea89 100644
--- a/json_serialization/std/tables.nim
+++ b/json_serialization/std/tables.nim
@@ -7,13 +7,27 @@ type
 proc writeValue*(writer: var JsonWriter, value: TableType) =
   writer.beginRecord()
   for key, val in value:
-    writer.writeField key, val
+    writer.writeField $key, val
   writer.endRecord()
 
+
+template to*(a: string, b: typed): untyped =
+  {.error: "doesnt support keys with type " & $type(b) .}
+
+template to*(a: string, b: type int): int =
+  parseInt(a)
+
+template to*(a: string, b: type float): float =
+  parseFloat(a)
+
+template to*(a: string, b: type string): string =
+  a
+  
+
 proc readValue*(reader: var JsonReader, value: var TableType) =
   type KeyType = type(value.keys)
   type ValueType = type(value.values)
   value = init TableType
-  for key, val in readObject(reader, KeyType, ValueType):
-    value[key] = val
+  for key, val in readObject(reader, string, ValueType):
+    value[to(key, KeyType)] = val