diff --git a/flight/INS/pios_board.c b/flight/INS/pios_board.c
index 22279036b..d906d98e4 100644
--- a/flight/INS/pios_board.c
+++ b/flight/INS/pios_board.c
@@ -487,7 +487,7 @@ static const struct pios_i2c_adapter_cfg pios_i2c_gyro_adapter_cfg = {
 		.I2C_Ack                 = I2C_Ack_Enable,
 		.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit,
 		.I2C_DutyCycle           = I2C_DutyCycle_2,
-		.I2C_ClockSpeed          = 400000,	/* bits/s */
+		.I2C_ClockSpeed          = 1000000,	/* bits/s */
 	},
 	.transfer_timeout_ms = 50,
 	.scl = {