diff --git a/src/WiringPi_stubs.c b/src/WiringPi_stubs.c
index a966889..133158e 100644
--- a/src/WiringPi_stubs.c
+++ b/src/WiringPi_stubs.c
@@ -9,70 +9,71 @@
 #include <wiringPi.h>
 #include <wiringShift.h>
 
-value caml_hello(value unit) {
-     CAMLparam1(unit);
-     printf("Hello world!\n");
-     CAMLreturn(Val_unit);
+value caml_hello(value unit)
+{
+  CAMLparam1(unit);
+  printf("Hello world!\n");
+  CAMLreturn(Val_unit);
 }
 
 value caml_wiringPiSetup(value unit)
 {
-     CAMLparam1(unit);
-     CAMLreturn(Val_int(wiringPiSetup()));
+  CAMLparam1(unit);
+  CAMLreturn(Val_int(wiringPiSetup()));
 }
 
 value caml_wiringPiSetupGpio(value unit)
 {
-     CAMLparam1(unit);
-     CAMLreturn(Val_int(wiringPiSetupGpio()));
+  CAMLparam1(unit);
+  CAMLreturn(Val_int(wiringPiSetupGpio()));
 }
 
 value caml_wiringPiSetupPhys(value unit)
 {
-     CAMLparam1(unit);
-     CAMLreturn(Val_int(wiringPiSetupPhys()));
+  CAMLparam1(unit);
+  CAMLreturn(Val_int(wiringPiSetupPhys()));
 }
 
 value caml_wiringPiSetupSys(value unit)
 {
-     CAMLparam1(unit);
-     CAMLreturn(Val_int(wiringPiSetupSys()));
+  CAMLparam1(unit);
+  CAMLreturn(Val_int(wiringPiSetupSys()));
 }
 
 // Core functions
 
 value caml_pinMode(value pin, value mode)
 {
-     CAMLparam2(pin, mode);
-     pinMode(Int_val(pin), Int_val(mode));
-     CAMLreturn(Val_unit);
+  CAMLparam2(pin, mode);
+  pinMode(Int_val(pin), Int_val(mode));
+  CAMLreturn(Val_unit);
 }
 
 value caml_pullUpDnControl(value pin, value pud)
 {
-     CAMLparam2(pin, pud);
-     pullUpDnControl(Int_val(pin), Int_val(pin));
-     CAMLreturn(Val_unit);
+  CAMLparam2(pin, pud);
+  pullUpDnControl(Int_val(pin), Int_val(pin));
+  CAMLreturn(Val_unit);
 }
 
 value caml_digitalWrite(value pin, value value_p)
 {
-     CAMLparam2(pin, value_p);
-     digitalWrite(Int_val(pin), Int_val(value_p));
-     CAMLreturn(Val_unit);
+  CAMLparam2(pin, value_p);
+  digitalWrite(Int_val(pin), Int_val(value_p));
+  CAMLreturn(Val_unit);
 }
 
 value caml_pwmWrite(value pin, value value_p)
 {
-     CAMLparam2(pin, value_p);
-     pwmWrite(Int_val(pin), Int_val(value_p));
-     CAMLreturn(Val_unit);
+  CAMLparam2(pin, value_p);
+  pwmWrite(Int_val(pin), Int_val(value_p));
+  CAMLreturn(Val_unit);
 }
 
 value caml_digitalRead(value pin)
 {
-     CAMLparam1(pin);
-     CAMLreturn(Val_int(digitalRead(Int_val(pin))));
+  CAMLparam1(pin);
+  CAMLreturn(Val_int(digitalRead(Int_val(pin))));
 }
 
 // AnalogRead and AnalogWrite needs to be added (module must be added)
@@ -81,9 +82,9 @@ value caml_digitalRead(value pin)
 
 value caml_digitalWriteByte(value value_p)
 {
-     CAMLparam1(value_p);
-     digitalWriteByte(Int_val(value_p));
-     CAMLreturn(Val_unit);
+  CAMLparam1(value_p);
+  digitalWriteByte(Int_val(value_p));
+  CAMLreturn(Val_unit);
 }
 
 // Others can be added...
@@ -96,25 +97,25 @@ value caml_digitalWriteByte(value value_p)
  * program called one of the wiringPiSetup functions. */
 value caml_millis(value unit)
 {
-     CAMLparam1(unit);
-     CAMLreturn(Val_int(millis()));
+  CAMLparam1(unit);
+  CAMLreturn(Val_int(millis()));
 }
 
 /* This returns a number representing the number of microseconds since your
  * program called one of the wiringPiSetup functions. */
 value caml_micros(value unit)
 {
-     CAMLparam1(unit);
-     CAMLreturn(Val_int(micros()));
+  CAMLparam1(unit);
+  CAMLreturn(Val_int(micros()));
 }
 
 /* This causes program execution to pause for at least howLong milliseconds.
  * Due to the multi-tasking nature of Linux it could be longer. */
 value caml_delay(value howLong)
 {
-     CAMLparam1(howLong);
-     delay(Int_val(howLong));
-     CAMLreturn(Val_unit);
+  CAMLparam1(howLong);
+  delay(Int_val(howLong));
+  CAMLreturn(Val_unit);
 }
 
 /* This causes program execution to pause for at least howLong microseconds.
@@ -126,7 +127,7 @@ value caml_delay(value howLong)
  * threads. */
 value caml_delayMicroseconds(value howLong)
 {
-     CAMLparam1(howLong);
-     delayMicroseconds(Int_val(howLong));
-     CAMLreturn(Val_unit);
+  CAMLparam1(howLong);
+  delayMicroseconds(Int_val(howLong));
+  CAMLreturn(Val_unit);
 }