diff --git a/prisma/migrations/20260723000000_ingestion_run_zips_backfilled/migration.sql b/prisma/migrations/20260723000000_ingestion_run_zips_backfilled/migration.sql
new file mode 100644
index 0000000..f13b9b4
--- /dev/null
+++ b/prisma/migrations/20260723000000_ingestion_run_zips_backfilled/migration.sql
@@ -0,0 +1,5 @@
+-- AlterTable: count of packages whose provenance was backfilled during a run
+-- (opportunistic cross-channel provenance backfill). Additive, non-null with a
+-- default of 0 — no data change for existing rows.
+ALTER TABLE "ingestion_runs"
+  ADD COLUMN "zipsBackfilled" INTEGER NOT NULL DEFAULT 0;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 679a74e..c25b8ce 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -569,6 +569,7 @@ model IngestionRun {
   zipsFound       Int             @default(0)
   zipsDuplicate   Int             @default(0)
   zipsIngested    Int             @default(0)
+  zipsBackfilled  Int             @default(0)
   errorMessage    String?
 
   // Live activity tracking — written by worker in real-time