diff --git a/arch/xtensa/src/esp32/esp32_i2c.c b/arch/xtensa/src/esp32/esp32_i2c.c
index 9680daf4c0c..889bf9ec38e 100644
--- a/arch/xtensa/src/esp32/esp32_i2c.c
+++ b/arch/xtensa/src/esp32/esp32_i2c.c
@@ -84,7 +84,7 @@
 
 /* Default option */
 
-#define I2C_FIFO_SIZE (255)
+#define I2C_FIFO_SIZE (32)
 
 #define I2C_FILTER_CYC_NUM_DEF (7)