diff --git a/quantum/config_common.h b/quantum/config_common.h
index 17254f9107..6d7e9e2d09 100644
--- a/quantum/config_common.h
+++ b/quantum/config_common.h
@@ -22,6 +22,9 @@
 #define CUSTOM_MATRIX 2 /* Disables built-in matrix scanning code */
 
 #ifdef __AVR__
+    #ifndef __ASSEMBLER__
+      #include <avr/io.h>
+    #endif
     #define PORT_SHIFTER 4 // this may be 4 for all AVR chips
 
     // If you want to add more to this list, reference the PINx definitions in these header
diff --git a/tmk_core/protocol/vusb/usbdrv/usbdrvasm.S b/tmk_core/protocol/vusb/usbdrv/usbdrvasm.S
index 45fcf18315..2e8097da9c 100644
--- a/tmk_core/protocol/vusb/usbdrv/usbdrvasm.S
+++ b/tmk_core/protocol/vusb/usbdrv/usbdrvasm.S
@@ -118,7 +118,7 @@ RTMODEL "__rt_version", "3"
 #   define polyH    r21
 #   define scratch  r23
 
-#else  /* __IAR_SYSTEMS_ASM__ */ 
+#else  /* __IAR_SYSTEMS_ASM__ */
 /* Register assignments for usbCrc16 on gcc */
 /* Calling conventions on gcc:
  * First parameter passed in r24/r25, second in r22/23 and so on.
@@ -151,7 +151,7 @@ RTMODEL "__rt_version", "3"
 ; unsigned table(unsigned char x)
 ; {
 ; unsigned    value;
-; 
+;
 ;     value = (unsigned)x << 6;
 ;     value ^= (unsigned)x << 7;
 ;     if(parity(x))
@@ -161,7 +161,7 @@ RTMODEL "__rt_version", "3"
 ; unsigned usbCrc16(unsigned char *argPtr, unsigned char argLen)
 ; {
 ; unsigned crc = 0xffff;
-; 
+;
 ;     while(argLen--)
 ;         crc = table(lo8(crc) ^ *argPtr++) ^ hi8(crc);
 ;     return ~crc;
@@ -299,7 +299,7 @@ usbCrc16Append:
 #   define cnt16H   r31
 #   define cntH     r18
 
-#else  /* __IAR_SYSTEMS_ASM__ */ 
+#else  /* __IAR_SYSTEMS_ASM__ */
 /* Register assignments for usbMeasureFrameLength on gcc */
 /* Calling conventions on gcc:
  * First parameter passed in r24/r25, second in r22/23 and so on.