diff --git a/ledger/src/blockstore_db.rs b/ledger/src/blockstore_db.rs
index 22d0da8b1d3061..0462cd61d7577d 100644
--- a/ledger/src/blockstore_db.rs
+++ b/ledger/src/blockstore_db.rs
@@ -1140,7 +1140,7 @@ impl Column for columns::MerkleRootMeta {
         key
     }
 
-    fn slot((slot, _fec_set_index): Self::Index) -> Slot {
+    fn primary_index((slot, _fec_set_index): Self::Index) -> Slot {
         slot
     }