diff --git a/release.nix b/release.nix
index ebae64ba..57f36f5c 100644
--- a/release.nix
+++ b/release.nix
@@ -16,7 +16,7 @@ rec {
       version = builtins.readFile ./version;
 
       buildInputs =
-        [ perl libxslt dblatex tetex nukeReferences pkgconfig boehmgc git ];
+        [ perl libxslt dblatex tetex nukeReferences pkgconfig boehmgc git openssl];
 
       versionSuffix = if officialRelease then "" else "pre${toString hydraSrc.revCount}-${hydraSrc.gitTag}";