diff --git a/src/introspect.c b/src/introspect.c
index 20acc9fce..742e27978 100644
--- a/src/introspect.c
+++ b/src/introspect.c
@@ -35,7 +35,7 @@ static int node_event_info(void *object, const struct pw_node_info *info)
 	return 0;
 }
 
-static int node_event_param(void *object,
+static int node_event_param(void *object, uint32_t seq,
 		uint32_t id, uint32_t index, uint32_t next,
 		const struct spa_pod *param)
 {
@@ -110,7 +110,7 @@ static const struct pw_client_proxy_events client_events = {
 	.info = client_event_info,
 };
 
-static int device_event_param(void *object,
+static int device_event_param(void *object, uint32_t seq,
 		uint32_t id, uint32_t index, uint32_t next,
 		const struct spa_pod *param)
 {
diff --git a/src/operation.c b/src/operation.c
index 2e9e863f8..5115815af 100644
--- a/src/operation.c
+++ b/src/operation.c
@@ -52,8 +52,8 @@ pa_operation *pa_operation_new(pa_context *c, pa_stream *s, pa_operation_cb_t cb
 int pa_operation_sync(pa_operation *o)
 {
 	pa_context *c = o->context;
-	o->seq = pw_core_proxy_sync(c->core_proxy, 0);
 	pw_log_debug("operation %p: sync %d", o, o->seq);
+	o->seq = pw_core_proxy_sync(c->core_proxy, 0, 0);
 	return 0;
 }