diff --git a/nix/.stack.nix/cardano-wallet-test-utils.nix b/nix/.stack.nix/cardano-wallet-test-utils.nix
index d3a5006b253..b02a6969c3b 100644
--- a/nix/.stack.nix/cardano-wallet-test-utils.nix
+++ b/nix/.stack.nix/cardano-wallet-test-utils.nix
@@ -40,6 +40,7 @@
           (hsPkgs."directory" or (errorHandler.buildDepError "directory"))
           (hsPkgs."either" or (errorHandler.buildDepError "either"))
           (hsPkgs."fmt" or (errorHandler.buildDepError "fmt"))
+          (hsPkgs."generic-lens" or (errorHandler.buildDepError "generic-lens"))
           (hsPkgs."hspec-core" or (errorHandler.buildDepError "hspec-core"))
           (hsPkgs."hspec-expectations" or (errorHandler.buildDepError "hspec-expectations"))
           (hsPkgs."hspec-golden-aeson" or (errorHandler.buildDepError "hspec-golden-aeson"))