diff --git a/keyboards/dc01/left/config.h b/keyboards/dc01/left/config.h
index 57614e84ab21..e3f11e36b9ef 100644
--- a/keyboards/dc01/left/config.h
+++ b/keyboards/dc01/left/config.h
@@ -42,7 +42,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
 */
 #define MATRIX_ROW_PINS { B6, B5, B4, D7, D6 }
-#define MATRIX_COL_PINS { F4, F1, F0, F7, F6, F5 }
+#define MATRIX_COL_PINS { F4, F1, F0, F7, F6, F5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
 #define UNUSED_PINS
 
 #define F_SCL 350000UL
diff --git a/keyboards/dc01/left/matrix.c b/keyboards/dc01/left/matrix.c
index 0833afc11bce..f672f1ae887c 100644
--- a/keyboards/dc01/left/matrix.c
+++ b/keyboards/dc01/left/matrix.c
@@ -71,7 +71,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #if (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
 static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
-static const uint8_t col_pins[MATRIX_COLS_SCANNED] = MATRIX_COL_PINS;
+static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
 #endif
 
 /* matrix state(1:on, 0:off) */