diff --git a/channels/chan_zap.c b/channels/chan_zap.c
index 4dc2f72fd3..b37cc7a8f7 100644
--- a/channels/chan_zap.c
+++ b/channels/chan_zap.c
@@ -9537,7 +9537,7 @@ static int handle_pri_show_span(int fd, int argc, char *argv[])
 		return RESULT_SHOWUSAGE;
 	span = atoi(argv[3]);
 	if ((span < 1) || (span > NUM_SPANS)) {
-		ast_cli(fd, "Invalid span %s.  Should be a number %d to %d\n", argv[4], 1, NUM_SPANS);
+		ast_cli(fd, "Invalid span '%s'.  Should be a number from %d to %d\n", argv[3], 1, NUM_SPANS);
 		return RESULT_SUCCESS;
 	}
 	if (!pris[span-1].pri) {