diff --git a/board/cheza/board.c b/board/cheza/board.c
index e7862b9064..42515b1d71 100644
--- a/board/cheza/board.c
+++ b/board/cheza/board.c
@@ -67,7 +67,7 @@ BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
 
 /* I2C port map */
 const struct i2c_port_t i2c_ports[] = {
-	{"power",   I2C_PORT_POWER,  400, GPIO_I2C0_SCL,  GPIO_I2C0_SDA},
+	{"power",   I2C_PORT_POWER,  100, GPIO_I2C0_SCL,  GPIO_I2C0_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},