diff --git a/pkgs/development/libraries/zeroc-ice/default.nix b/pkgs/development/libraries/zeroc-ice/default.nix
index 82b53402fc78..c18223d524fe 100644
--- a/pkgs/development/libraries/zeroc-ice/default.nix
+++ b/pkgs/development/libraries/zeroc-ice/default.nix
@@ -13,6 +13,8 @@ stdenv.mkDerivation rec {
     sha256 = "05xympbns32aalgcfcpxwfd7bvg343f16xpg6jv5s335ski3cjy2";
   };
 
+  NIX_CFLAGS_COMPILE = [ "-Wno-error=class-memaccess" ];
+
   patches = [ ./makefile.patch ];
 
   buildInputs = [ mcpp bzip2 expat openssl db5 ]