diff --git a/board/cheza/board.c b/board/cheza/board.c
index bbf266ca1e..0995ef0089 100644
--- a/board/cheza/board.c
+++ b/board/cheza/board.c
@@ -35,8 +35,8 @@ const struct adc_t adc_channels[] = {};
 /* I2C port map */
 const struct i2c_port_t i2c_ports[] = {
 	{"power",   I2C_PORT_POWER,  400, GPIO_I2C0_SCL,  GPIO_I2C0_SDA},
-	{"tcpc0",   I2C_PORT_TCPC0, 1000, GPIO_I2C1_SCL,  GPIO_I2C1_SDA},
-	{"tcpc1",   I2C_PORT_TCPC1, 1000, GPIO_I2C2_SCL,  GPIO_I2C2_SDA},
+	{"tcpc0",   I2C_PORT_TCPC0,  400, GPIO_I2C1_SCL,  GPIO_I2C1_SDA},
+	{"tcpc1",   I2C_PORT_TCPC1,  400, GPIO_I2C2_SCL,  GPIO_I2C2_SDA},
 	{"eeprom",  I2C_PORT_EEPROM, 400, GPIO_I2C5_SCL,  GPIO_I2C5_SDA},
 	{"sensor",  I2C_PORT_SENSOR, 400, GPIO_I2C7_SCL,  GPIO_I2C7_SDA},
 };