diff --git a/pkgs/development/libraries/sword/default.nix b/pkgs/development/libraries/sword/default.nix
index a3684194c0f..3486981463f 100644
--- a/pkgs/development/libraries/sword/default.nix
+++ b/pkgs/development/libraries/sword/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
     patchShebangs .;
   '';
 
-  configureFlags = "--without-conf --enable-debug";
+  configureFlags = "--without-conf --enable-tests=no CXXFLAGS=-Wno-unused-but-set-variable";
 
   meta = {
     description = "A software framework that allows research manipulation of Biblical texts";