diff --git a/pkgs/applications/virtualization/xen/generic.nix b/pkgs/applications/virtualization/xen/generic.nix
index c830fccb1201..39ca30a75434 100644
--- a/pkgs/applications/virtualization/xen/generic.nix
+++ b/pkgs/applications/virtualization/xen/generic.nix
@@ -141,6 +141,9 @@ stdenv.mkDerivation {
       touch tools/include/gnu/stubs-32.h
     '';
 
+  # Fix build on Glibc 2.24.
+  NIX_CFLAGS_COMPILE = "-Wno-error=deprecated-declarations";
+
   # TODO: Flask needs more testing before enabling it by default.
   #makeFlags = "XSM_ENABLE=y FLASK_ENABLE=y PREFIX=$(out) CONFIG_DIR=/etc XEN_EXTFILES_URL=\\$(XEN_ROOT)/xen_ext_files ";
   makeFlags = "PREFIX=$(out) CONFIG_DIR=/etc XEN_EXTFILES_URL=\\$(XEN_ROOT)/xen_ext_files ";