1 files changed, 8 insertions, 6 deletions
diff --git a/keyboards/crkbd/keymaps/madhatter/keymap.c b/keyboards/crkbd/keymaps/madhatter/keymap.c
index 57a522deb4..c228a7b573 100644
--- a/keyboards/crkbd/keymaps/madhatter/keymap.c
+++ b/keyboards/crkbd/keymaps/madhatter/keymap.c
@@ -17,8 +17,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include QMK_KEYBOARD_H
-
-extern uint8_t is_master;
+#ifdef SSD1306OLED
+#    include "ssd1306.h"
+#    include <string.h>
+#endif
 
 enum corny_layers {
   _QWERTY,
@@ -108,7 +110,7 @@ void matrix_init_user(void) {
     #endif
     //SSD1306 OLED init, make sure to add #define SSD1306OLED in config.h
     #ifdef SSD1306OLED
-        iota_gfx_init(!has_usb());   // turns on the display
+        iota_gfx_init();   // turns on the display
     #endif
 }
 
@@ -132,10 +134,10 @@ void matrix_scan_user(void) {
 }
 
 void matrix_render_user(struct CharacterMatrix *matrix) {
-  if (is_master) {
+  if (is_keyboard_master()) {
     // If you want to change the display of OLED, you need to change here
-    matrix_write_ln(matrix, read_layer_state());
-    matrix_write_ln(matrix, read_keylog());
+    matrix_write(matrix, read_layer_state());
+    matrix_write(matrix, read_keylog());
     //matrix_write_ln(matrix, read_keylogs());
     //matrix_write_ln(matrix, read_mode_icon(keymap_config.swap_lalt_lgui));
     //matrix_write_ln(matrix, read_host_led_state());