diff --git a/pkgs/development/libraries/hwloc/default.nix b/pkgs/development/libraries/hwloc/default.nix
index fd93326d5ee3..aa59a8917141 100644
--- a/pkgs/development/libraries/hwloc/default.nix
+++ b/pkgs/development/libraries/hwloc/default.nix
@@ -33,7 +33,9 @@ stdenv.mkDerivation rec {
              -e "s|-lnuma|-L$numalibdir -lnuma|g"
       '';
 
-  doCheck = true;
+  # XXX: A test hangs on Cygwin, see
+  # <http://hydra.bordeaux.inria.fr/build/51474/nixlog/1/raw>.
+  doCheck = !stdenv.isCygwin;
 
   meta = {
     description = "hwloc, a portable abstraction of hierarchical architectures for high-performance computing";