diff --git a/include/serial.h b/include/serial.h
index 58943d507..35d7b8f66 100644
--- a/include/serial.h
+++ b/include/serial.h
@@ -148,7 +148,7 @@ unsigned char __fastcall__ ser_open (const struct ser_params* params);
 /* "Open" the port by setting the port parameters and enable interrupts. */
 
 unsigned char ser_close (void);
-/* "Close" the port. Clear buffers and and disable interrupts. */
+/* "Close" the port. Clear buffers and disable interrupts. */
 
 unsigned char __fastcall__ ser_get (char* b);
 /* Get a character from the serial port. If no characters are available, the
@@ -171,6 +171,3 @@ unsigned char __fastcall__ ser_ioctl (unsigned char code, void* data);
 
 /* End of serial.h */
 #endif
-
-
-