From e2ac91b8601bcf1ed2cbc83bd2530412e3b49a19 Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Fri, 29 Aug 2025 16:59:38 +0200
Subject: [PATCH] ump: make sure we set the group correctly

---
 spa/include/spa/control/ump-utils.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/spa/include/spa/control/ump-utils.h b/spa/include/spa/control/ump-utils.h
index 52738897f..582c44e2d 100644
--- a/spa/include/spa/control/ump-utils.h
+++ b/spa/include/spa/control/ump-utils.h
@@ -223,15 +223,15 @@ SPA_API_CONTROL_UMP_UTILS int spa_ump_from_midi(uint8_t **midi, size_t *midi_siz
 			break;
 		case 0xf2:
 			to_consume = 3;
-			prefix = 0x10000000;
+			prefix |= 0x10000000;
 			break;
 		case 0xf1: case 0xf3:
 			to_consume = 2;
-			prefix = 0x10000000;
+			prefix |= 0x10000000;
 			break;
 		case 0xf4 ... 0xff:
 			to_consume = 1;
-			prefix = 0x10000000;
+			prefix |= 0x10000000;
 			break;
 		default:
 			return -EIO;