diff --git a/spa/plugins/audioconvert/audioadapter.c b/spa/plugins/audioconvert/audioadapter.c
index 33f6967fa..07c522863 100644
--- a/spa/plugins/audioconvert/audioadapter.c
+++ b/spa/plugins/audioconvert/audioadapter.c
@@ -1048,7 +1048,8 @@ static void follower_port_info(void *data,
 
 			if (idx == IDX_Latency) {
 				res = recalc_latency(this, direction, port_id);
-				spa_log_debug(this->log, "latency: %d", res);
+				spa_log_debug(this->log, "latency: %d (%s)", res,
+						spa_strerror(res));
 			}
 
 			this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;