diff --git a/build-constraints.yaml b/build-constraints.yaml
index d5f763cc..5adccfe1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3517,6 +3517,9 @@ expected-haddock-failures:
     - stratosphere
     - store
 
+    # https://github.com/psibi/fb/issues/1
+    - fb
+
 # end of expected-haddock-failures
 
 # Benchmarks which should not be built. Note that Stackage builds benchmarks but does not run them.