diff --git a/pkgs/tools/security/duo-unix/default.nix b/pkgs/tools/security/duo-unix/default.nix
index a7cd61d7f67..2070150a32e 100644
--- a/pkgs/tools/security/duo-unix/default.nix
+++ b/pkgs/tools/security/duo-unix/default.nix
@@ -14,6 +14,7 @@ stdenv.mkDerivation rec {
     [ "--with-pam=$(out)/lib/security"
       "--prefix=$(out)"
       "--sysconfdir=$(out)/etc/duo"
+      "--with-openssl=${openssl}"
     ];
 
   meta = {