diff --git a/src/bsc_hack.c b/src/bsc_hack.c
index e4f90b4..7aa8b9a 100644
--- a/src/bsc_hack.c
+++ b/src/bsc_hack.c
@@ -1059,10 +1059,11 @@
 			{"bts-type", 1, 0, 't'},
 			{"cardnr", 1, 0, 'C'},
 			{"release-l2", 0, 0, 'R'},
+			{"timestamp", 0, 0, 'T'},
 			{0, 0, 0, 0}
 		};
 
-		c = getopt_long(argc, argv, "hc:n:d:sar:p:f:t:C:RL:l:",
+		c = getopt_long(argc, argv, "hc:n:d:sar:p:f:t:C:RL:l:T",
 				long_options, &option_index);
 		if (c == -1)
 			break;
@@ -1111,6 +1112,9 @@
 		case 'R':
 			release_l2 = 1;
 			break;
+		case 'T':
+			debug_timestamp(1);
+			break;
 		default:
 			/* ignore */
 			break;