--- a/src/filters/in_dvb4linux.c
+++ b/src/filters/in_dvb4linux.c
@@ -126,7 +126,7 @@
 			if (line[0]=='\n') continue;
 
 #ifndef GPAC_SIM_LINUX_DVB
-			strncpy(chan_name_t, line, index(line, ':')-line);
+			strncpy(chan_name_t, line, strchr(line, ':')-line);
 			chan_name_t[254] = 0;
 
 			if (strncmp(chan_name,chan_name_t,strlen(chan_name))==0) {