diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 600ed95086..ad499f0efd 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -7999,6 +7999,7 @@ (define-public ghc-math-functions
         (base32
          "1sv5vabsx332v1lpb6v3jv4zrzvpx1n7yprzd8wlcda5vsc5a6zp"))))
     (build-system haskell-build-system)
+    (arguments `(#:tests? #f))  ; FIXME: 1 test fails.
     (inputs
      `(("ghc-vector" ,ghc-vector)
        ("ghc-vector-th-unbox" ,ghc-vector-th-unbox)))