diff --git a/usb_protocol/emitters/descriptors/hid.py b/usb_protocol/emitters/descriptors/hid.py
index 47b4193..f5b63db 100644
--- a/usb_protocol/emitters/descriptors/hid.py
+++ b/usb_protocol/emitters/descriptors/hid.py
@@ -63,7 +63,7 @@ class HIDDescriptor(ComplexDescriptorEmitter):
             "null": null,
             "volatile": volatile,
         })
-        self.add_report(HIDPrefix.INPUT, ord(item_flags))
+        self.add_report_item(HIDPrefix.INPUT, ord(item_flags))
 
     def add_output_item(self,
                   data_constant = False,
@@ -87,7 +87,7 @@ class HIDDescriptor(ComplexDescriptorEmitter):
             "null": null,
             "volatile": volatile,
         })
-        self.add_report(HIDPrefix.OUTPUT, ord(item_flags))
+        self.add_report_item(HIDPrefix.OUTPUT, ord(item_flags))
 
     def __init__(self, parent_descriptor):
         super().__init__()
diff --git a/usb_protocol/types/descriptors/hid.py b/usb_protocol/types/descriptors/hid.py
index 39305e2..7c814f7 100644
--- a/usb_protocol/types/descriptors/hid.py
+++ b/usb_protocol/types/descriptors/hid.py
@@ -63,7 +63,7 @@ ReportDescriptor = DescriptorFormat(
     "bHeader" / construct.BitStruct(
         # prefix technically consists of a 4 byte tag and a 2 byte type,
         # however, they're all listed together in the HID spec
-        "prefix"  / construct.Enum(construct.BitsInteger(6), HIDPrefixes),
+        "prefix"  / construct.Enum(construct.BitsInteger(6), HIDPrefix),
         "bSize"   / construct.BitsInteger(2),
     ),
     "data"    / construct.Byte[lambda ctx: _hid_item_length[ctx.bHeader.bSize]]