diff --git a/packages/midi/device/gakken_nsx-39.mjs b/packages/midi/device/gakken_nsx-39.mjs
index 6e9299918..b7c1b3216 100644
--- a/packages/midi/device/gakken_nsx-39.mjs
+++ b/packages/midi/device/gakken_nsx-39.mjs
@@ -26,7 +26,7 @@ export const miku = {
   せ: '0x79:0x09:0x11:0x0A:0x00:0x18',
   そ: '0x79:0x09:0x11:0x0A:0x00:0x19',
   ざ: '0x79:0x09:0x11:0x0A:0x00:0x1a',
-  づぁ: '0x79:0x09:0x11:0x0A:0x00:0x1a', 
+  づぁ: '0x79:0x09:0x11:0x0A:0x00:0x1a',
   ずぃ: '0x79:0x09:0x11:0x0A:0x00:0x1b',
   づぃ: '0x79:0x09:0x11:0x0A:0x00:0x1b',
   ず: '0x79:0x09:0x11:0x0A:0x00:0x1c',