diff --git a/boards/xtensa/esp32s3/esp32s3-box/src/esp32s3_board_lcd_ili9342c.c b/boards/xtensa/esp32s3/esp32s3-box/src/esp32s3_board_lcd_ili9342c.c
index 8508527bfad..4ac1be322ec 100644
--- a/boards/xtensa/esp32s3/esp32s3-box/src/esp32s3_board_lcd_ili9342c.c
+++ b/boards/xtensa/esp32s3/esp32s3-box/src/esp32s3_board_lcd_ili9342c.c
@@ -30,6 +30,7 @@
 #include <stdbool.h>
 #include <debug.h>
 #include <errno.h>
+#include <endian.h>
 #include <sys/param.h>
 
 #include <nuttx/arch.h>
@@ -420,6 +421,11 @@ static int ili9342c_sendgram(struct ili9341_lcd_s *lcd,
 {
   struct ili9342c_lcd_dev *priv = (struct ili9342c_lcd_dev *)lcd;
 
+  for (uint32_t i = 0; i < nwords; i++)
+    {
+      ((uint16_t *)wd)[i] = swap16(wd[i]);
+    }
+
   lcdinfo("lcd:%p, wd=%p, nwords=%" PRIu32 "\n", lcd, wd, nwords);
 
   SPI_SETBITS(priv->spi_dev, 16);