diff --git a/pkgs/development/python-modules/cffi/default.nix b/pkgs/development/python-modules/cffi/default.nix
index 7eca740953f..64162e7371b 100644
--- a/pkgs/development/python-modules/cffi/default.nix
+++ b/pkgs/development/python-modules/cffi/default.nix
@@ -31,7 +31,7 @@ if isPyPy then null else buildPythonPackage rec {
   # The tests use -Werror but with python3.6 clang detects some unreachable code.
   NIX_CFLAGS_COMPILE = stdenv.lib.optionals stdenv.cc.isClang [ "-Wno-unused-command-line-argument" "-Wno-unreachable-code" ];
 
-  doCheck = !stdenv.hostPlatform.isMusl; # TODO: Investigate
+  doCheck = !stdenv.hostPlatform.isMusl && !stdenv.isDarwin; # TODO: Investigate
   checkPhase = ''
     py.test -k "not test_char_pointer_conversion"
   '';