1 files changed, 2 insertions, 1 deletions
diff --git a/fxotune.c b/fxotune.c
index bf8b6af..d7ee9ca 100644
--- a/fxotune.c
+++ b/fxotune.c
@@ -167,7 +167,8 @@ static int ensure_silence(struct silence_info *info)
 	memset(&dop, 0, sizeof(dop));
 	dop.op = ZT_DIAL_OP_REPLACE;
 	dop.dialstr[0] = 'T';
-	strncpy(dop.dialstr + 1, info->dialstr, sizeof(dop.dialstr) - 1);
+	zap_copy_string(dop.dialstr + 1, info->dialstr, sizeof(dop.dialstr));
+
 
 	if (ioctl(info->device, ZT_DIAL, &dop)) {
 		fprintf(stderr, "Unable to dial!\n");