diff --git a/src/json2daisy/json2daisy.py b/src/json2daisy/json2daisy.py
index 5195c90..6866f6a 100644
--- a/src/json2daisy/json2daisy.py
+++ b/src/json2daisy/json2daisy.py
@@ -255,6 +255,7 @@ def generate_header(board_description_dict: dict) -> 'tuple[str, dict]':
 
     if 'defines' in target:
         if target['defines'].get('OOPSY_TARGET_HAS_MIDI_INPUT'):
+            target['has_midi'] = True
             replacements['midi'] = """daisy::MidiUartHandler midi;
   daisy::MidiUsbHandler midiusb;"""
 
@@ -321,7 +322,8 @@ def generate_header(board_description_dict: dict) -> 'tuple[str, dict]':
         'name': target['name'],
         'components': components,
         'aliases': target['aliases'],
-        'channels': audio_channels
+        'channels': audio_channels,
+        'has_midi': target.get('has_midi', False)
       }
 
     return rendered_header, board_info