diff --git a/pkgs/development/python-modules/somajo/default.nix b/pkgs/development/python-modules/somajo/default.nix
index 11d0c02dfc8..54cd9beede3 100644
--- a/pkgs/development/python-modules/somajo/default.nix
+++ b/pkgs/development/python-modules/somajo/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, lib, fetchFromGitHub, buildPythonPackage, isPy3k, regex }:
+{ lib, stdenv, fetchFromGitHub, buildPythonPackage, isPy3k, regex }:
 
 buildPythonPackage rec {
   pname = "SoMaJo";
@@ -14,6 +14,9 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ regex ];
 
+  # loops forever
+  doCheck = !stdenv.isDarwin;
+
   meta = with lib; {
     description = "Tokenizer and sentence splitter for German and English web texts";
     homepage = "https://github.com/tsproisl/SoMaJo";