diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c
index df6af07b47..eccb2d0efa 100644
--- a/shared-module/displayio/Display.c
+++ b/shared-module/displayio/Display.c
@@ -216,8 +216,8 @@ void displayio_display_set_region_to_update(displayio_display_obj_t* self, uint1
     self->send(self->bus, true, &self->set_column_command, 1);
     if (self->single_byte_bounds) {
         uint8_t data[2];
-        data[0] = (x0 + self->colstart) & 0xFF;
-        data[1] = (x1 - 1 + self->colstart) & 0xFF;
+        data[0] = x0 + self->colstart;
+        data[1] = x1 - 1 + self->colstart;
         self->send(self->bus, false, (uint8_t*) data, 2);
     } else {
         uint16_t data[2];
@@ -228,8 +228,8 @@ void displayio_display_set_region_to_update(displayio_display_obj_t* self, uint1
     self->send(self->bus, true, &self->set_row_command, 1);
     if (self->single_byte_bounds) {
         uint8_t data[2];
-        data[0] = (y0 + self->rowstart) & 0xFF;
-        data[1] = (y1 - 1 + self->rowstart) & 0xFF;
+        data[0] = y0 + self->rowstart;
+        data[1] = y1 - 1 + self->rowstart;
         self->send(self->bus, false, (uint8_t*) data, 2);
     } else {
         uint16_t data[2];