diff --git a/src/pcu_vty_functions.cpp b/src/pcu_vty_functions.cpp
index 1fac787..76baffe 100644
--- a/src/pcu_vty_functions.cpp
+++ b/src/pcu_vty_functions.cpp
@@ -72,7 +72,7 @@
 		VTY_NEWLINE);
 	vty_out(vty, " TS_alloc=");
 	for (int i = 0; i < 8; i++) {
-		bool is_ctrl = tbf->is_control_ts(i);
+		bool is_ctrl = tbf_is_control_ts(tbf, tbf->pdch[i]);
 		if (tbf->pdch[i])
 			vty_out(vty, "%d%s ", i, is_ctrl ? "!" : "");
 	}