diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index fb0dff4534c9..848946363c09 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -5235,6 +5235,7 @@ let
     propagatedBuildInputs = [ CryptOpenSSLRandom ];
     env.NIX_CFLAGS_COMPILE = "-I${pkgs.openssl.dev}/include";
     NIX_CFLAGS_LINK = "-L${lib.getLib pkgs.openssl}/lib -lcrypto";
+    OPENSSL_PREFIX = pkgs.openssl;
     buildInputs = [ CryptOpenSSLGuess ];
     meta = {
       description = "RSA encoding and decoding, using the openSSL libraries";