diff -rup a/compress42.c b/compress42.c
--- a/compress42.c	2019-01-04 11:42:45.000000000 +0100
+++ b/compress42.c	2019-02-07 16:59:54.997757443 +0100
@@ -537,8 +513,8 @@ int				remove_ofname = 0;	/* Remove outp
 char			*ofname = NULL;		/* Output filename								*/
 int				fgnd_flag = 0;		/* Running in background (SIGINT=SIGIGN)		*/
 
-long 			bytes_in;			/* Total number of byte from input				*/
-long 			bytes_out;			/* Total number of byte to output				*/
+long long bytes_in;			/* Total number of byte from input				*/
+long long bytes_out;			/* Total number of byte to output				*/
 
 /*
  * 8086 & 80286 Has a problem with array bigger than 64K so fake the array