diff --git a/src/lib/db/core.ts b/src/lib/db/core.ts
index a69db56e64..9d8e928864 100644
--- a/src/lib/db/core.ts
+++ b/src/lib/db/core.ts
@@ -408,7 +408,12 @@ const SCHEMA_SQL = `
   CREATE INDEX IF NOT EXISTS idx_cl_timestamp ON call_logs(timestamp);
   CREATE INDEX IF NOT EXISTS idx_cl_status ON call_logs(status);
   CREATE INDEX IF NOT EXISTS idx_cl_provider_timestamp ON call_logs(provider, timestamp);
-  CREATE INDEX IF NOT EXISTS idx_cl_request_provider ON call_logs(request_type, provider);
+  -- idx_cl_request_provider is NOT declared here: SCHEMA_SQL runs before
+  -- ensureCallLogsColumns() heals a legacy call_logs table, and a lineage that
+  -- predates the request_type column has none yet — the CREATE INDEX would abort
+  -- the whole schema exec with "no such column: request_type" and the server would
+  -- never boot. It is created next to the other request_type/combo indexes in
+  -- ensureCallLogsColumns() (db/schemaColumns.ts), after the columns exist.
 
   CREATE TABLE IF NOT EXISTS proxy_logs (
     id TEXT PRIMARY KEY,
diff --git a/src/lib/db/schemaColumns.ts b/src/lib/db/schemaColumns.ts
index b288072dac..d0d7b42493 100644
--- a/src/lib/db/schemaColumns.ts
+++ b/src/lib/db/schemaColumns.ts
@@ -265,6 +265,12 @@ export function ensureCallLogsColumns(db: SqliteDatabase) {
       "CREATE INDEX IF NOT EXISTS idx_call_logs_requested_model ON call_logs(requested_model)"
     );
     db.exec("CREATE INDEX IF NOT EXISTS idx_call_logs_request_type ON call_logs(request_type)");
+    // #12832's provider-stats index. It lives here rather than in SCHEMA_SQL because
+    // SCHEMA_SQL runs before this healing pass: on a legacy call_logs table that
+    // predates `request_type` the CREATE INDEX aborts the whole schema exec.
+    db.exec(
+      "CREATE INDEX IF NOT EXISTS idx_cl_request_provider ON call_logs(request_type, provider)"
+    );
     db.exec(
       "CREATE INDEX IF NOT EXISTS idx_cl_combo_target ON call_logs(combo_name, combo_execution_key, timestamp)"
     );