diff --git a/hardware/arduino/avr/cores/arduino/HID.cpp b/hardware/arduino/avr/cores/arduino/HID.cpp
index a94538cc2..1475860d2 100644
--- a/hardware/arduino/avr/cores/arduino/HID.cpp
+++ b/hardware/arduino/avr/cores/arduino/HID.cpp
@@ -106,7 +106,7 @@ const u8 _hidReportDescriptor[] = {
     0x81, 0x00,                    //   INPUT (Data,Ary,Abs)
     0xc0,                          // END_COLLECTION
 
-#if RAWHID_ENABLED
+#ifdef RAWHID_ENABLED
 	//	RAW HID
 	0x06, LSB(RAWHID_USAGE_PAGE), MSB(RAWHID_USAGE_PAGE),	// 30
 	0x0A, LSB(RAWHID_USAGE), MSB(RAWHID_USAGE),
diff --git a/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.ino b/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.ino
index ec495b306..bf122d999 100644
--- a/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.ino
+++ b/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.ino
@@ -17,6 +17,8 @@
  * LCD D6 pin to digital pin 3
  * LCD D7 pin to digital pin 2
  * LCD R/W pin to ground
+ * LCD VSS pin to ground
+ * LCD VCC pin to 5V
  * 10K resistor:
  * ends to +5V and ground
  * wiper to LCD VO pin (pin 3)
diff --git a/libraries/LiquidCrystal/src/LiquidCrystal.cpp b/libraries/LiquidCrystal/src/LiquidCrystal.cpp
index 0653487d7..d7bd9e453 100644
--- a/libraries/LiquidCrystal/src/LiquidCrystal.cpp
+++ b/libraries/LiquidCrystal/src/LiquidCrystal.cpp
@@ -96,7 +96,7 @@ void LiquidCrystal::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) {
 
   // SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
   // according to datasheet, we need at least 40ms after power rises above 2.7V
-  // before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50
+  // before sending commands. Arduino can turn on way before 4.5V so we'll wait 50
   delayMicroseconds(50000); 
   // Now we pull both RS and R/W low to begin commands
   digitalWrite(_rs_pin, LOW);