diff --git a/tmk_core/common/uart.c b/tmk_core/common/uart.c
index 412fcf8e1..ccf7f7ff0 100644
--- a/tmk_core/common/uart.c
+++ b/tmk_core/common/uart.c
@@ -32,35 +32,35 @@
 #include "uart.h"
 
 #if defined(__AVR_ATmega168__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P__)
-#   define UDRn         UDR0
-#   define UBRRn        UBRR0
-#   define UCSRnA       UCSR0A
-#   define UCSRnB       UCSR0B
-#   define UCSRnC       UCSR0C
-#   define U2Xn         U2X0
-#   define RXENn        RXEN0
-#   define TXENn        TXEN0
-#   define RXCIEn       RXCIE0
-#   define UCSZn1       UCSZ01
-#   define UCSZn0       UCSZ00
-#   define UDRIEn       UDRIE0
-#   define UDRE_vect    USART_UDRE_vect
-#   define RX_vect      USART_RX_vect
+#    define UDRn UDR0
+#    define UBRRn UBRR0
+#    define UCSRnA UCSR0A
+#    define UCSRnB UCSR0B
+#    define UCSRnC UCSR0C
+#    define U2Xn U2X0
+#    define RXENn RXEN0
+#    define TXENn TXEN0
+#    define RXCIEn RXCIE0
+#    define UCSZn1 UCSZ01
+#    define UCSZn0 UCSZ00
+#    define UDRIEn UDRIE0
+#    define UDRE_vect USART_UDRE_vect
+#    define RX_vect USART_RX_vect
 #elif defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega32U2__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__)
-#   define UDRn         UDR1
-#   define UBRRn        UBRR1
-#   define UCSRnA       UCSR1A
-#   define UCSRnB       UCSR1B
-#   define UCSRnC       UCSR1C
-#   define U2Xn         U2X1
-#   define RXENn        RXEN1
-#   define TXENn        TXEN1
-#   define RXCIEn       RXCIE1
-#   define UCSZn1       UCSZ11
-#   define UCSZn0       UCSZ10
-#   define UDRIEn       UDRIE1
-#   define UDRE_vect    USART1_UDRE_vect
-#   define RX_vect      USART1_RX_vect
+#    define UDRn UDR1
+#    define UBRRn UBRR1
+#    define UCSRnA UCSR1A
+#    define UCSRnB UCSR1B
+#    define UCSRnC UCSR1C
+#    define U2Xn U2X1
+#    define RXENn RXEN1
+#    define TXENn TXEN1
+#    define RXCIEn RXCIE1
+#    define UCSZn1 UCSZ11
+#    define UCSZn0 UCSZ10
+#    define UDRIEn UDRIE1
+#    define UDRE_vect USART1_UDRE_vect
+#    define RX_vect USART1_RX_vect
 #endif
 
 // These buffers may be any size from 2 to 256 bytes.
@@ -92,14 +92,14 @@ void uart_putchar(uint8_t c) {
 
     i = tx_buffer_head + 1;
     if (i >= TX_BUFFER_SIZE) i = 0;
-	// return immediately to avoid deadlock when interrupt is disabled(called from ISR)
-	if (tx_buffer_tail == i && (SREG & (1<<SREG_I)) == 0) return;
+    // return immediately to avoid deadlock when interrupt is disabled(called from ISR)
+    if (tx_buffer_tail == i && (SREG & (1 << SREG_I)) == 0) return;
     while (tx_buffer_tail == i)
         ;  // wait until space in buffer
     // cli();
     tx_buffer[i]   = c;
     tx_buffer_head = i;
-    UCSRB         = (1 << RXENn) | (1 << TXENn) | (1 << RXCIEn) | (1 << UDRIEn);
+    UCSRB          = (1 << RXENn) | (1 << TXENn) | (1 << RXCIEn) | (1 << UDRIEn);
     // sei();
 }