diff --git a/conf/db/upgrade/V5.4.10__schema.sql b/conf/db/upgrade/V5.4.10__schema.sql
index e69de29bb2d..ab73deda0f6 100644
--- a/conf/db/upgrade/V5.4.10__schema.sql
+++ b/conf/db/upgrade/V5.4.10__schema.sql
@@ -0,0 +1,3 @@
+-- ZSTAC-86476: Add normalizedModelName column for GPU spec dedup
+CALL ADD_COLUMN('GpuDeviceSpecVO', 'normalizedModelName', 'VARCHAR(255)', 1, NULL);
+CALL CREATE_INDEX('GpuDeviceSpecVO', 'idx_gpu_spec_normalized_model', 'normalizedModelName');