diff --git a/build-constraints.yaml b/build-constraints.yaml
index a0b24957..ab901fc4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4513,6 +4513,7 @@ expected-test-failures:
     - flat # https://github.com/Quid2/flat/issues/1
     - haddock
     - heap # https://github.com/pruvisto/heap/issues/4
+    - hledger-iadd # https://github.com/fpco/stackage/issues/3473
     - hspec-expectations-pretty-diff # GHC 8 issue not reported upstream since issue tracker disabled
     - hweblib # https://github.com/aycanirican/hweblib/issues/3
     - language-dockerfile # https://github.com/beijaflor-io/haskell-language-dockerfile/issues/8