diff --git a/build-constraints.yaml b/build-constraints.yaml
index ca352717..405e268e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3824,6 +3824,7 @@ expected-test-failures:
     - ghc-exactprint # https://github.com/alanz/ghc-exactprint/issues/47
     - nettle # https://github.com/stbuehler/haskell-nettle/issues/8
     - pixelated-avatar-generator # 0.1.3 https://github.com/ExcaliburZero/pixelated-avatar-generator/issues/19
+    - servant-elm # https://github.com/mattjbray/servant-elm/issues/38
     - shikensu # https://github.com/icidasset/shikensu/issues/5
     - unicode-show # https://github.com/nushio3/unicode-show/issues/2
     - xml-picklers # https://github.com/Philonous/xml-picklers/issues/5