diff --git a/libraries/AP_RangeFinder/AP_RangeFinder_SharpGP2Y.cpp b/libraries/AP_RangeFinder/AP_RangeFinder_SharpGP2Y.cpp
index 1e43441159..d91f711068 100644
--- a/libraries/AP_RangeFinder/AP_RangeFinder_SharpGP2Y.cpp
+++ b/libraries/AP_RangeFinder/AP_RangeFinder_SharpGP2Y.cpp
@@ -1,45 +1,45 @@
 // -*- tab-width: 4; Mode: C++; c-basic-offset: 3; indent-tabs-mode: t -*-
 /*
-	AP_RangeFinder_SharpGP2Y.cpp - Arduino Library for Sharpe GP2Y0A02YK0F
-	infrared proximity sensor
-	Code by Jose Julio and Randy Mackay. DIYDrones.com
-
-	This library is free software; you can redistribute it and/or
-    modify it under the terms of the GNU Lesser General Public
-    License as published by the Free Software Foundation; either
-    version 2.1 of the License, or (at your option) any later version.
-
-	Sensor should be conected to one of the analog ports
-
-	Sparkfun URL: http://www.sparkfun.com/products/8958
-	datasheet: http://www.sparkfun.com/datasheets/Sensors/Infrared/gp2y0a02yk_e.pdf
-
-	Variables:
-		int raw_value : raw value from the sensor
-		int distance : distance in cm
-		int max_distance : maximum measurable distance (in cm)
-		int min_distance : minimum measurable distance (in cm)
-
-	Methods:
-		read() : read value from analog port
-
-*/
+ *       AP_RangeFinder_SharpGP2Y.cpp - Arduino Library for Sharpe GP2Y0A02YK0F
+ *       infrared proximity sensor
+ *       Code by Jose Julio and Randy Mackay. DIYDrones.com
+ *
+ *       This library is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU Lesser General Public
+ *   License as published by the Free Software Foundation; either
+ *   version 2.1 of the License, or (at your option) any later version.
+ *
+ *       Sensor should be conected to one of the analog ports
+ *
+ *       Sparkfun URL: http://www.sparkfun.com/products/8958
+ *       datasheet: http://www.sparkfun.com/datasheets/Sensors/Infrared/gp2y0a02yk_e.pdf
+ *
+ *       Variables:
+ *               int raw_value : raw value from the sensor
+ *               int distance : distance in cm
+ *               int max_distance : maximum measurable distance (in cm)
+ *               int min_distance : minimum measurable distance (in cm)
+ *
+ *       Methods:
+ *               read() : read value from analog port
+ *
+ */
 
 // AVR LibC Includes
 #if defined(ARDUINO) && ARDUINO >= 100
-	#include "Arduino.h"
+ #include "Arduino.h"
 #else
-	#include "WConstants.h"
+ #include "WConstants.h"
 #endif
 #include "AP_RangeFinder_SharpGP2Y.h"
 
 // Constructor //////////////////////////////////////////////////////////////
 
 AP_RangeFinder_SharpGP2Y::AP_RangeFinder_SharpGP2Y(AP_AnalogSource *source, FilterInt16 *filter) :
-	RangeFinder(source, filter)
+    RangeFinder(source, filter)
 {
     max_distance = AP_RANGEFINDER_SHARPEGP2Y_MAX_DISTANCE;
-	min_distance = AP_RANGEFINDER_SHARPEGP2Y_MIN_DISTANCE;
+    min_distance = AP_RANGEFINDER_SHARPEGP2Y_MIN_DISTANCE;
 }
 
 // Public Methods //////////////////////////////////////////////////////////////