diff --git a/bdk/input/joycon.h b/bdk/input/joycon.h
index cc1b19f..af0a849 100644
--- a/bdk/input/joycon.h
+++ b/bdk/input/joycon.h
@@ -92,12 +92,12 @@ typedef struct _jc_gamepad_rpt_t
 
 typedef struct _jc_calib_t
 {
-	unsigned short x_max:12;
-	unsigned short y_max:12;
-	unsigned short x_center:12;
-	unsigned short y_center:12;
-	unsigned short x_min:12;
-	unsigned short y_min:12;
+	u16 x_max:12;
+	u16 y_max:12;
+	u16 x_center:12;
+	u16 y_center:12;
+	u16 x_min:12;
+	u16 y_min:12;
 } __attribute__((packed)) jc_calib_t;
 
 void jc_init_hw();