1 files changed, 2 insertions, 2 deletions

diff --git a/keyboards/jm60/matrix.c b/keyboards/jm60/matrix.c
index 8430a5843..01bb4a80d 100644
--- a/keyboards/jm60/matrix.c
+++ b/keyboards/jm60/matrix.c
@@ -49,8 +49,8 @@ void matrix_init(void)
     palSetPadMode(GPIOB, 1, PAL_MODE_OUTPUT_PUSHPULL);
     palSetPadMode(GPIOB, 0,  PAL_MODE_OUTPUT_PUSHPULL);
 
-    memset(matrix, 0, MATRIX_ROWS);
-    memset(matrix_debouncing, 0, MATRIX_ROWS);
+    memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t));
+    memset(matrix_debouncing, 0, MATRIX_ROWS * sizeof(matrix_row_t));
 }
 
 uint8_t matrix_scan(void)