diff --git a/coreapi/bellesip_sal/sal_impl.c b/coreapi/bellesip_sal/sal_impl.c
index 395285eb4..a640f4814 100644
--- a/coreapi/bellesip_sal/sal_impl.c
+++ b/coreapi/bellesip_sal/sal_impl.c
@@ -984,7 +984,7 @@ const char *sal_get_supported_tags(Sal *ctx){
 }
 
 void sal_add_supported_tag(Sal *ctx, const char* tag){
-	MSList *elem=ms_list_find_custom(ctx->supported_tags,(MSCompareFunc)strcasecmp,NULL);
+	MSList *elem=ms_list_find_custom(ctx->supported_tags,(MSCompareFunc)strcasecmp,tag);
 	if (!elem){
 		ctx->supported_tags=ms_list_append(ctx->supported_tags,ms_strdup(tag));
 		make_supported_header(ctx);
@@ -993,7 +993,7 @@ void sal_add_supported_tag(Sal *ctx, const char* tag){
 }
 
 void sal_remove_supported_tag(Sal *ctx, const char* tag){
-	MSList *elem=ms_list_find_custom(ctx->supported_tags,(MSCompareFunc)strcasecmp,NULL);
+	MSList *elem=ms_list_find_custom(ctx->supported_tags,(MSCompareFunc)strcasecmp,tag);
 	if (elem){
 		ms_free(elem->data);
 		ctx->supported_tags=ms_list_remove_link(ctx->supported_tags,elem);
diff --git a/coreapi/linphonecall.c b/coreapi/linphonecall.c
index beda9f6ba..47d5ca347 100644
--- a/coreapi/linphonecall.c
+++ b/coreapi/linphonecall.c
@@ -3066,3 +3066,10 @@ LinphonePlayer *linphone_call_get_player(LinphoneCall *call){
 		call->player=linphone_call_build_player(call);
 	return call->player;
 }
+
+void linphone_call_set_new_params(LinphoneCall *call, const LinphoneCallParams *params){
+	LinphoneCallParams *cp=NULL;
+	if (params) cp=linphone_call_params_copy(params);
+	if (call->params) linphone_call_params_unref(call->params);
+	call->params=cp;
+}
diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index 6398117c8..e43135e3d 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -2820,7 +2820,7 @@ int linphone_core_accept_early_media_with_params(LinphoneCore* lc, LinphoneCall*
 
 		// if parameters are passed, update the media description
 		if ( params ) {
-			call->params = linphone_call_params_copy(params);
+			linphone_call_set_new_params(call,params);
 			linphone_call_make_local_media_description ( lc,call );
 			sal_call_set_local_media_description ( call->op,call->localdesc );
 			sal_op_set_sent_custom_header ( call->op,params->custom_headers );
@@ -2926,8 +2926,7 @@ int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const Linpho
 
 		}
 #endif /* defined(VIDEO_ENABLED) && defined(BUILD_UPNP) */
-
-		call->params = linphone_call_params_copy(params);
+		linphone_call_set_new_params(call,params);
 		err=linphone_call_prepare_ice(call,FALSE);
 		if (err==1) {
 			ms_message("Defer call update to gather ICE candidates");
@@ -3057,7 +3056,7 @@ int _linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, cons
 	if (params==NULL){
 		call->params->has_video=lc->video_policy.automatically_accept || call->current_params->has_video;
 	}else
-		call->params = linphone_call_params_copy(params);
+		linphone_call_set_new_params(call,params);
 
 	if (call->params->has_video && !linphone_core_video_enabled(lc)){
 		ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
@@ -3172,7 +3171,7 @@ int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call,
 	linphone_call_set_contact_op(call);
 	if (params){
 		const SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
-		call->params = linphone_call_params_copy(params);
+		linphone_call_set_new_params(call,params);
 		// There might not be a md if the INVITE was lacking an SDP
 		// In this case we use the parameters as is.
 		if (md) {
diff --git a/coreapi/private.h b/coreapi/private.h
index 89ff1f7a3..7d1fc0770 100644
--- a/coreapi/private.h
+++ b/coreapi/private.h
@@ -261,6 +261,7 @@ BELLE_SIP_DECLARE_VPTR(LinphoneCall);
 
 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params, LinphoneProxyConfig *cfg);
 LinphoneCall * linphone_call_new_incoming(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op);
+void linphone_call_set_new_params(LinphoneCall *call, const LinphoneCallParams *params);
 void linphone_call_set_state(LinphoneCall *call, LinphoneCallState cstate, const char *message);
 void linphone_call_set_contact_op(LinphoneCall* call);
 void linphone_call_set_compatible_incoming_call_parameters(LinphoneCall *call, const SalMediaDescription *md);
diff --git a/tester/call_tester.c b/tester/call_tester.c
index c8de2ee80..effc17844 100644
--- a/tester/call_tester.c
+++ b/tester/call_tester.c
@@ -2925,6 +2925,7 @@ static void call_with_in_dialog_update(void) {
 	params=linphone_core_create_call_params(marie->lc,linphone_core_get_current_call(marie->lc));
 	params->no_user_consent=TRUE;
 	linphone_core_update_call(marie->lc,linphone_core_get_current_call(marie->lc),params);
+	linphone_call_params_destroy(params);
 	CU_ASSERT_TRUE(wait_for(marie->lc,pauline->lc,&marie->stat.number_of_LinphoneCallUpdating,1));
 	CU_ASSERT_TRUE(wait_for(marie->lc,pauline->lc,&marie->stat.number_of_LinphoneCallStreamsRunning,2));
 	CU_ASSERT_TRUE(wait_for(marie->lc,pauline->lc,&pauline->stat.number_of_LinphoneCallUpdatedByRemote,1));