diff --git a/Adafruit_PWMServoDriver.cpp b/Adafruit_PWMServoDriver.cpp
index 50e492e..fdad804 100755
--- a/Adafruit_PWMServoDriver.cpp
+++ b/Adafruit_PWMServoDriver.cpp
@@ -110,10 +110,9 @@ void Adafruit_PWMServoDriver::wakeup() {
  *  @param  extclk
  *          Sets EXTCLK pin to use the external clock, default false
  */
-void Adafruit_PWMServoDriver::setPrescale(uint8_t prescale, 
-                                          bool extclk) {
+void Adafruit_PWMServoDriver::setPrescale(uint8_t prescale, bool extclk) {
   if (prescale < PCA9685_PRESCALE_MIN) 
-	return;
+    return;
   // if (prescale > PCA9685_PRESCALE_MAX) return;
 
   uint8_t newmode1 = read8(PCA9685_MODE1);
@@ -122,7 +121,7 @@ void Adafruit_PWMServoDriver::setPrescale(uint8_t prescale,
 
   // This sets both the SLEEP and EXTCLK bits of the MODE1 register to switch to
   // use the external clock.
-  if (extclk) { 
+  if (extclk) {
     write8(PCA9685_MODE1, (newmode1 |= MODE1_EXTCLK));
   }