diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 8f4317746f9..7c363dcf586 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -206,6 +206,7 @@ self: super: {
   network-transport-tcp = dontCheck super.network-transport-tcp;
   raven-haskell = dontCheck super.raven-haskell;        # http://hydra.cryp.to/build/502053/log/raw
   riak = dontCheck super.riak;                          # http://hydra.cryp.to/build/498763/log/raw
+  slack-api = dontCheck super.slack-api;                # https://github.com/mpickering/slack-api/issues/5
   stackage = dontCheck super.stackage;                  # http://hydra.cryp.to/build/501867/nixlog/1/raw
   warp = dontCheck super.warp;                          # http://hydra.cryp.to/build/501073/nixlog/5/raw
   wreq = dontCheck super.wreq;                          # http://hydra.cryp.to/build/501895/nixlog/1/raw