diff --git a/src/crc16.h b/src/crc16.h
index db10131d..32fa7ff3 100644
--- a/src/crc16.h
+++ b/src/crc16.h
@@ -5,30 +5,19 @@
 extern "C" {
 #endif
 
-/*
- * Derived from CRC algorithm for JTAG ICE mkII, published in Atmel
- * Appnote AVR067.  Converted from C++ to C.
- */
+  // Derived from CRC algorithm for JTAG ICE mkII, published in Atmel Appnote AVR067
+  extern unsigned short crcsum(const unsigned char *message, unsigned long length, unsigned short crc);
 
-extern unsigned short crcsum(const unsigned char* message,
-			     unsigned long length,
-			     unsigned short crc);
-/*
- * Verify that the last two bytes is a (LSB first) valid CRC of the
- * message.
- */
-extern int crcverify(const unsigned char* message,
-		     unsigned long length);
-/*
- * Append a two byte CRC (LSB first) to message.  length is size of
- * message excluding crc.  Space for the CRC bytes must be allocated
- * in advance!
- */
-extern void crcappend(unsigned char* message,
-		      unsigned long length);
+  // Verify that the last two bytes is a (LSB first) valid CRC of the message
+  extern int crcverify(const unsigned char *message, unsigned long length);
+
+  /*
+   * Append a two byte CRC (LSB first) to message.  length is size of message
+   * excluding crc.  Space for the CRC bytes must be allocated in advance!
+   */
+  extern void crcappend(unsigned char *message, unsigned long length);
 
 #ifdef __cplusplus
 }
 #endif
-
 #endif