diff --git a/flake.nix b/flake.nix
index 4ed0ae37a..6c99b0030 100644
--- a/flake.nix
+++ b/flake.nix
@@ -15,7 +15,7 @@
 
       in rec {
         packages = rec {
-          concrete-contracts = ["OrderBook" "GenericPoolOrderBookFlashBorrower"];
+          concrete-contracts = ["OrderBook" "GenericPoolOrderBookV3FlashBorrower"];
           build-meta-cmd = contract: ''
             ${rain-cli} meta build \
               -i <(${rain-cli} meta solc artifact -c abi -i out/${contract}.sol/${contract}.json) -m solidity-abi-v2 -t json -e deflate -l en \
diff --git a/meta/OrderBook.rain.meta b/meta/OrderBook.rain.meta
index c375be5ef..3e6324487 100644
Binary files a/meta/OrderBook.rain.meta and b/meta/OrderBook.rain.meta differ