diff --git a/pio_upload.c b/pio_upload.c
index 7fc7861..195ffa5 100644
--- a/pio_upload.c
+++ b/pio_upload.c
@@ -44,7 +44,7 @@ void upload_pio()
     dsniff_pio_offset = pio_add_program(pio1, &glitch_dat_waiter_program);
     pio1->sm[G_DAT0_SM].shiftctrl = c.shiftctrl;
     // set y to amount of data ticks to skip
-    val = 531 * 200 / 25;
+    val = 527;
     for (int i = 5; i >= 0; i--) {
         pio_sm_exec(pio1, G_DAT0_SM, pio_encode_set(pio_y, (val >> i*4) & 15));
         pio_sm_exec(pio1, G_DAT0_SM, pio_encode_in(pio_y, 4));