diff --git a/client/cmddata.c b/client/cmddata.c
index d5b072c01..e96fb517c 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -1485,6 +1485,7 @@ int CmdFSKdemodPyramid(const char *Cmd)
     csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
   }
   //check checksum calc
+  //checksum calc thanks to ICEMAN!!
   uint32_t checkCS =  CRC8Maxim(csBuff,13);
 
   //get raw ID before removing parities
diff --git a/common/crc.c b/common/crc.c
index b8eb227ee..0c73474fa 100644
--- a/common/crc.c
+++ b/common/crc.c
@@ -42,7 +42,8 @@ uint32_t crc_finish(crc_t *crc)
 	return ( crc->state ^ crc->final_xor ) & crc->mask;
 }
 
-uint32_t CRC8Maxim(uint8_t *buff, size_t size  ) 
+//credits to iceman
+uint32_t CRC8Maxim(uint8_t *buff, size_t size) 
 {
 	crc_t crc;
 	crc_init(&crc, 9, 0x8c, 0x00, 0x00);