X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/b838c4ff272c2e48cc24b73dba35eda7e810d0b8..dca8220f729d7855b12c89ecb402958ce6dbc81b:/client/cmdhf14a.c

diff --git a/client/cmdhf14a.c b/client/cmdhf14a.c
index 856d37b3..480923d6 100644
--- a/client/cmdhf14a.c
+++ b/client/cmdhf14a.c
@@ -770,7 +770,7 @@ int CmdHF14AAPDU(const char *cmd) {
 					return 1;
 			}
 			
-		if (isxdigit(c)) {
+		if (isxdigit((unsigned char)c)) {
 			// len = data + PCB(1b) + CRC(2b)
 			switch(param_gethex_to_eol(cmd, cmdp, data, sizeof(data) - 1 - 2, &datalen)) {
 			case 1: