diff --git a/flight/PiOS/Common/pios_bmp085.c b/flight/PiOS/Common/pios_bmp085.c
index dfe75b7f0..850e4d919 100644
--- a/flight/PiOS/Common/pios_bmp085.c
+++ b/flight/PiOS/Common/pios_bmp085.c
@@ -199,7 +199,8 @@ int32_t PIOS_BMP085_GetPressure(void)
 int32_t PIOS_BMP085_Read(uint8_t address, uint8_t *buffer, uint8_t len)
 {
 	/* Try to get the I2C peripheral */
-	if(PIOS_I2C_LockDevice(0) < 0) {
+	if(PIOS_I2C_LockDevice(0) == FALSE)
+	{
 		/* Request a retry */
 		return -2;
 	}
@@ -233,7 +234,8 @@ int32_t PIOS_BMP085_Read(uint8_t address, uint8_t *buffer, uint8_t len)
 int32_t PIOS_BMP085_Write(uint8_t address, uint8_t buffer)
 {
 	/* Try to get the IIC peripheral */
-	if(PIOS_I2C_LockDevice(0) < 0) {
+	if(PIOS_I2C_LockDevice(0) == FALSE)
+	{
 		/* Request a retry */
 		return -2;
 	}