diff --git a/pkgs/development/libraries/mps/default.nix b/pkgs/development/libraries/mps/default.nix
index 1430a3dfca15..23f271ae04b0 100644
--- a/pkgs/development/libraries/mps/default.nix
+++ b/pkgs/development/libraries/mps/default.nix
@@ -16,6 +16,7 @@ stdenv.mkDerivation rec {
   NIX_CFLAGS_COMPILE = [
     "-Wno-implicit-fallthrough"
     "-Wno-error=clobbered"
+    "-Wno-error=cast-function-type"
   ];