1 files changed, 2 insertions, 1 deletions
diff --git a/src/netascii.c b/src/netascii.c
index fb4d7b8..d061e57 100644
--- a/src/netascii.c
+++ b/src/netascii.c
@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include <stdlib.h>
 
 #include "netascii.h"
 
@@ -29,7 +30,7 @@ uint8_t is_netascii_str(char *str) {
 	return 1;
 }
 
-uint8_t is_netascii_buf(char *buf, uint64_t len) {
+uint8_t is_netascii_buf(char *buf, size_t len) {
 	for (uint64_t i = 0; i < len; i++) {
 		if (!is_netascii_char(buf[i])) {
 			return 0;