diff --git a/pkgs/tools/networking/dhcp/default.nix b/pkgs/tools/networking/dhcp/default.nix
index 8b1ac864a43..41a83770fed 100644
--- a/pkgs/tools/networking/dhcp/default.nix
+++ b/pkgs/tools/networking/dhcp/default.nix
@@ -33,7 +33,10 @@ stdenv.mkDerivation rec {
     "--localstatedir=/var"
   ] ++ stdenv.lib.optionals (openldap != null) [ "--with-ldap" "--with-ldapcrypto" ];
 
-  NIX_CFLAGS_COMPILE = [ "-Wno-error=pointer-compare" ];
+  NIX_CFLAGS_COMPILE = [
+    "-Wno-error=pointer-compare"
+    "-Wno-error=format-truncation"
+  ];
 
   installFlags = [ "DESTDIR=\${out}" ];