diff --git a/emulators/mame0278.yml b/emulators/mame0278.yml
index b4677360..ba1390e6 100644
--- a/emulators/mame0278.yml
+++ b/emulators/mame0278.yml
@@ -6,6 +6,7 @@ upstream: https://github.com/mamedev/mame/tree/mame0278
 profiled_date: '2026-10-22'
 source_commit: fba50741006fa3e27e1897f589d2048a505b8fd6
 upstream_commit: eb05584a2b8d98d5af5587244c9cb7dcccf660fd
+pin_frozen: 'Recalbox, the only platform that ships it, builds this revision (Recalbox package/libretro-mame0278/libretro-mame0278.mk:8 at tag 10.1.1). Later commits are not part of that build.'
 core_version: '0.278'
 display_name: Arcade (MAME 0.278)
 cores: