diff --git a/monitor/btsnoop.c b/monitor/btsnoop.c
index 147e9ee..04a6dff 100644
--- a/monitor/btsnoop.c
+++ b/monitor/btsnoop.c
@@ -198,6 +198,17 @@ int btsnoop_open(const char *path)
 
 	btsnoop_type = ntohl(hdr.type);
 
+	switch (btsnoop_type) {
+	case 1001:
+	case 1002:
+		packet_del_filter(PACKET_FILTER_SHOW_INDEX);
+		break;
+
+	case 2001:
+		packet_add_filter(PACKET_FILTER_SHOW_INDEX);
+		break;
+	}
+
 	return 0;
 }
 
diff --git a/monitor/control.c b/monitor/control.c
index 49df440..638d173 100644
--- a/monitor/control.c
+++ b/monitor/control.c
@@ -795,6 +795,8 @@ void control_reader(const char *path)
 
 int control_tracing(void)
 {
+	packet_add_filter(PACKET_FILTER_SHOW_INDEX);
+
 	if (server_fd >= 0)
 		return 0;
 
diff --git a/monitor/main.c b/monitor/main.c
index 7ea7773..9307f52 100644
--- a/monitor/main.c
+++ b/monitor/main.c
@@ -109,7 +109,6 @@ int main(int argc, char *argv[])
 
 	mainloop_set_signal(&mask, signal_callback, NULL, NULL);
 
-	filter_mask |= PACKET_FILTER_SHOW_INDEX;
 	filter_mask |= PACKET_FILTER_SHOW_TIME;
 
 	packet_set_filter(filter_mask);
diff --git a/monitor/packet.c b/monitor/packet.c
index f5d1c17..fd9e663 100644
--- a/monitor/packet.c
+++ b/monitor/packet.c
@@ -98,6 +98,16 @@ void packet_set_filter(unsigned long filter)
 	filter_mask = filter;
 }
 
+void packet_add_filter(unsigned long filter)
+{
+	filter_mask |= filter;
+}
+
+void packet_del_filter(unsigned long filter)
+{
+	filter_mask &= ~filter;
+}
+
 static void print_channel_header(struct timeval *tv, uint16_t index,
 							uint16_t channel)
 {
diff --git a/monitor/packet.h b/monitor/packet.h
index ea21bd7..29fab66 100644
--- a/monitor/packet.h
+++ b/monitor/packet.h
@@ -33,6 +33,8 @@
 #define PACKET_FILTER_SHOW_SCO_DATA	(1 << 4)
 
 void packet_set_filter(unsigned long filter);
+void packet_add_filter(unsigned long filter);
+void packet_del_filter(unsigned long filter);
 
 void packet_hexdump(const unsigned char *buf, uint16_t len);