diff --git a/Marlin/Marlin.h b/Marlin/Marlin.h
index 464d7ebf5..574a85ec5 100644
--- a/Marlin/Marlin.h
+++ b/Marlin/Marlin.h
@@ -4,6 +4,7 @@
 // Tonokip RepRap firmware rewrite based off of Hydra-mmm firmware.
 // Licence: GPL
 #define  HardwareSerial_h // trick to disable the standard HWserial
+#include <math.h>
 #include <WProgram.h>
 #include "fastio.h"
 #include <avr/pgmspace.h>
diff --git a/Marlin/Marlin.pde b/Marlin/Marlin.pde
index 7c0d31011..06fd09776 100644
--- a/Marlin/Marlin.pde
+++ b/Marlin/Marlin.pde
@@ -25,8 +25,8 @@
     http://reprap.org/pipermail/reprap-dev/2011-May/003323.html
  */
 
+#include <math.h>
 #include <EEPROM.h>
-
 #include "EEPROMwrite.h"
 #include "fastio.h"
 #include "Configuration.h"
@@ -39,6 +39,7 @@
 #include "motion_control.h"
 #include "cardreader.h"
 #include "watchdog.h"
+#include <stdio.h>
 
 
 #define VERSION_STRING  "1.0.0 Beta 1"
diff --git a/Marlin/MarlinSerial.h b/Marlin/MarlinSerial.h
index 051070fde..76d5a35a1 100644
--- a/Marlin/MarlinSerial.h
+++ b/Marlin/MarlinSerial.h
@@ -21,7 +21,7 @@
 
 #ifndef MarlinSerial_h
 #define MarlinSerial_h
-
+#include <math.h>
 #include <inttypes.h>
 //#include <Stream.h>
 #include <string.h>
diff --git a/Marlin/Sanguino/cores/arduino/wiring.h b/Marlin/Sanguino/cores/arduino/wiring.h
index e29959b86..0a9367805 100644
--- a/Marlin/Sanguino/cores/arduino/wiring.h
+++ b/Marlin/Sanguino/cores/arduino/wiring.h
@@ -25,6 +25,7 @@
 #ifndef Wiring_h
 #define Wiring_h
 
+#include <math.h>
 #include <avr/io.h>
 #include <stdlib.h>
 #include "binary.h"
diff --git a/Marlin/Sanguino/cores/arduino/wiring_private.h b/Marlin/Sanguino/cores/arduino/wiring_private.h
index 11f6f00f2..56c471353 100644
--- a/Marlin/Sanguino/cores/arduino/wiring_private.h
+++ b/Marlin/Sanguino/cores/arduino/wiring_private.h
@@ -24,7 +24,7 @@
 
 #ifndef WiringPrivate_h
 #define WiringPrivate_h
-
+#include <math.h>
 #include <avr/io.h>
 #include <avr/interrupt.h>
 #include <avr/delay.h>
diff --git a/Marlin/pins.h b/Marlin/pins.h
index fbb4f194c..60dd6e514 100644
--- a/Marlin/pins.h
+++ b/Marlin/pins.h
@@ -427,6 +427,7 @@
     #define TX_ENABLE_PIN	12
     #define RX_ENABLE_PIN	13
 
+    
 #endif
 
 /****************************************************************************************
diff --git a/Marlin/planner.h b/Marlin/planner.h
index 741c6f902..05bef3a23 100644
--- a/Marlin/planner.h
+++ b/Marlin/planner.h
@@ -23,7 +23,7 @@
 
 #ifndef planner_h
 #define planner_h
-
+#include <math.h>
 #include "Configuration.h"
 #include "Marlin.h"