diff --git a/pkgs/development/libraries/ldns/default.nix b/pkgs/development/libraries/ldns/default.nix
index 6c2a8f84d23..e9d81d3ab78 100644
--- a/pkgs/development/libraries/ldns/default.nix
+++ b/pkgs/development/libraries/ldns/default.nix
@@ -40,6 +40,9 @@ stdenv.mkDerivation rec {
     "--with-trust-anchor=${dns-root-data}/root.key"
     "--with-drill"
     "--disable-gost"
+  ] ++ stdenv.lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+    "ac_cv_func_malloc_0_nonnull=yes"
+    "ac_cv_func_realloc_0_nonnull=yes"
   ];
 
   postInstall = ''