diff --git a/library/IPA_Emulation.ttcnpp b/library/IPA_Emulation.ttcnpp
index 2305b7b..7b80c2d 100644
--- a/library/IPA_Emulation.ttcnpp
+++ b/library/IPA_Emulation.ttcnpp
@@ -51,8 +51,9 @@
 import from RSPRO_Types all;
 #endif
 
-
+#ifdef IPA_EMULATION_CTRL
 import from Osmocom_CTRL_Types all;
+#endif
 
 modulepar {
 	/* Use Osmocom extended IPA mux header */
@@ -146,10 +147,12 @@
 } with { extension "internal" }
 #endif
 
+#ifdef IPA_EMULATION_CTRL
 /* Client port for CTRL inside IPA */
 type port IPA_CTRL_PT message {
 	inout CtrlMessage, ASP_IPA_Event;
 } with { extension "internal" }
+#endif
 
 #ifdef IPA_EMULATION_GSUP
 /* Client port for CTRL inside IPA */
@@ -550,8 +553,10 @@
 	var ASP_Event asp_evt;
 	var Socket_API_Definitions.PortEvent port_evt;
 	var octetstring payload;
-	var CtrlMessage ctrl_msg;
 	var ASP_IPA_Unitdata ipa_ud;
+#ifdef IPA_EMULATION_CTRL
+	var CtrlMessage ctrl_msg;
+#endif
 #ifdef IPA_EMULATION_SCCP
 	var ASP_MTP3_TRANSFERreq mtp_req;
 #endif
@@ -631,9 +636,11 @@
 						f_mgcp_to_user(ipa_rx.msg);
 					}
 #endif
+#ifdef IPA_EMULATION_CTRL
 					case (IPAC_PROTO_EXT_CTRL) {
 						f_ctrl_to_user(ipa_rx.msg);
 					}
+#endif
 #ifdef IPA_EMULATION_GSUP
 					case (IPAC_PROTO_EXT_GSUP) {
 						f_gsup_to_user(ipa_rx.msg);