diff --git a/src/drivers/distance_sensor/mb12xx/mb12xx.cpp b/src/drivers/distance_sensor/mb12xx/mb12xx.cpp
index 7001ab7d3aca3f4b91911ab348aaf62497827cf2..d79fbb08cf82e5ebd99bd8ad95e5d251e0e0b8e2 100644
--- a/src/drivers/distance_sensor/mb12xx/mb12xx.cpp
+++ b/src/drivers/distance_sensor/mb12xx/mb12xx.cpp
@@ -131,7 +131,7 @@ private:
 	uint8_t				_cycle_counter;	/* counter in cycle to change i2c adresses */
 	int					_cycling_rate;	/* */
 	uint8_t				_index_counter;	/* temporary sonar i2c address */
-	px4::Array<uint8_t, MB12XX_MAX_RANGEFINDERS>	addr_ind; 	/* temp sonar i2c address vector */
+	px4::Array<uint8_t, RANGE_FINDER_MAX_SENSORS>	addr_ind; 	/* temp sonar i2c address vector */
 
 	/**
 	* Test whether the device supported by the driver is present at a
@@ -266,7 +266,7 @@ MB12XX::init()
 	/* check for connected rangefinders on each i2c port:
 	   We start from i2c base address (0x70 = 112) and count downwards
 	   So second iteration it uses i2c address 111, third iteration 110 and so on*/
-	for (unsigned counter = 0; counter <= MB12XX_MAX_RANGEFINDERS; counter++) {
+	for (unsigned counter = 0; counter <= RANGE_FINDER_MAX_SENSORS; counter++) {
 		_index_counter = MB12XX_BASEADDR - counter;	/* set temp sonar i2c address to base adress - counter */
 		set_device_address(_index_counter);			/* set I2c port to temp sonar i2c adress */
 		int ret2 = measure();
diff --git a/src/drivers/distance_sensor/srf02/srf02.cpp b/src/drivers/distance_sensor/srf02/srf02.cpp
index 71231d9e00034162df377a172b91c57e50dc8ef2..d749d189295936d9d419192d2ec0039d147410b9 100644
--- a/src/drivers/distance_sensor/srf02/srf02.cpp
+++ b/src/drivers/distance_sensor/srf02/srf02.cpp
@@ -131,7 +131,7 @@ private:
 	uint8_t				_cycle_counter;	/* counter in cycle to change i2c adresses */
 	int					_cycling_rate;	/* */
 	uint8_t				_index_counter;	/* temporary sonar i2c address */
-	px4::Array<uint8_t, MB12XX_MAX_RANGEFINDERS>	addr_ind; 	/* temp sonar i2c address vector */
+	px4::Array<uint8_t, RANGE_FINDER_MAX_SENSORS>	addr_ind; 	/* temp sonar i2c address vector */
 
 	/**
 	* Test whether the device supported by the driver is present at a
@@ -266,7 +266,7 @@ SRF02::init()
 	/* check for connected rangefinders on each i2c port:
 	   We start from i2c base address (0x70 = 112) and count downwards
 	   So second iteration it uses i2c address 111, third iteration 110 and so on*/
-	for (unsigned counter = 0; counter <= MB12XX_MAX_RANGEFINDERS; counter++) {
+	for (unsigned counter = 0; counter <= RANGE_FINDER_MAX_SENSORS; counter++) {
 		_index_counter = SRF02_BASEADDR - counter;	/* set temp sonar i2c address to base adress - counter */
 		set_device_address(_index_counter);			/* set I2c port to temp sonar i2c adress */
 		int ret2 = measure();
diff --git a/src/drivers/drv_range_finder.h b/src/drivers/drv_range_finder.h
index 38f49af6bc93c453266bc0bc04405b50d3dfd7e6..c02634c8d31935b2a97c797338fa7b707028a89d 100644
--- a/src/drivers/drv_range_finder.h
+++ b/src/drivers/drv_range_finder.h
@@ -46,6 +46,6 @@
 
 #define RANGE_FINDER_BASE_DEVICE_PATH	"/dev/range_finder"
 #define RANGE_FINDER0_DEVICE_PATH	"/dev/range_finder0"
-#define MB12XX_MAX_RANGEFINDERS	12	// Maximum number of Maxbotix sensors on bus
+#define RANGE_FINDER_MAX_SENSORS	12	// Maximum number of sensors on bus
 
 #endif /* _DRV_RANGEFINDER_H */