diff --git a/library/Osmocom_CTRL_Adapter.ttcn b/library/Osmocom_CTRL_Adapter.ttcn
index 4cfe739..9baa6a2 100644
--- a/library/Osmocom_CTRL_Adapter.ttcn
+++ b/library/Osmocom_CTRL_Adapter.ttcn
@@ -42,7 +42,9 @@
 	}
 }
 
-
+function f_ipa_ctrl_stop() runs on CTRL_Adapter_CT {
+	vc_CTRL_IPA.stop;
+}
 
 
 /* BSC specific CTRL helper functions */