diff --git a/src/tools/pw-top.c b/src/tools/pw-top.c
index 4ad7c28eb..6531903b8 100644
--- a/src/tools/pw-top.c
+++ b/src/tools/pw-top.c
@@ -180,7 +180,8 @@ static void node_param(void *data, int seq,
 				struct spa_audio_info_raw info;
 				if (spa_format_audio_raw_parse(param, &info) >= 0) {
 					snprintf(n->format, sizeof(n->format), "%6.6s %d %d",
-						spa_debug_type_find_short_name(spa_type_audio_format, info.format),
+						spa_debug_type_find_short_name(
+							spa_type_audio_format, info.format),
 						info.channels, info.rate);
 				}
 				break;
@@ -195,6 +196,18 @@ static void node_param(void *data, int seq,
 				}
 				break;
 			}
+			case SPA_MEDIA_SUBTYPE_iec958:
+			{
+				struct spa_audio_info_iec958 info;
+				if (spa_format_audio_iec958_parse(param, &info) >= 0) {
+					snprintf(n->format, sizeof(n->format), "IEC958 %s %d",
+						spa_debug_type_find_short_name(
+							spa_type_audio_iec958_codec, info.codec),
+						info.rate);
+
+				}
+				break;
+			}
 			}
 			break;
 		case SPA_MEDIA_TYPE_video: