diff --git a/pkgs/development/python-modules/lupa/default.nix b/pkgs/development/python-modules/lupa/default.nix
index 64d1ff7f8671..3c82fbc43603 100644
--- a/pkgs/development/python-modules/lupa/default.nix
+++ b/pkgs/development/python-modules/lupa/default.nix
@@ -42,13 +42,27 @@ buildPythonPackage (finalAttrs: {
   postPatch = ''
     (
       set -x
-      rm -rf third-party/lua51;    cp -r ${srcOnly lua5_1}     third-party/lua51
-      rm -rf third-party/lua52;    cp -r ${srcOnly lua5_2}/src third-party/lua52
-      rm -rf third-party/lua53;    cp -r ${srcOnly lua5_3}/src third-party/lua53
-      rm -rf third-party/lua54;    cp -r ${srcOnly lua5_4}/src third-party/lua54
-      rm -rf third-party/lua55;    cp -r ${srcOnly lua5_5}/src third-party/lua55
-      rm -rf third-party/luajit20; cp -r ${srcOnly luajit_2_0} third-party/luajit20
-      rm -rf third-party/luajit21; cp -r ${srcOnly luajit_2_1} third-party/luajit21
+      ${lib.optionalString lua5_1.meta.available ''
+        rm -rf third-party/lua51;    cp -r ${srcOnly lua5_1}     third-party/lua51
+      ''}
+      ${lib.optionalString lua5_2.meta.available ''
+        rm -rf third-party/lua52;    cp -r ${srcOnly lua5_2}/src third-party/lua52
+      ''}
+      ${lib.optionalString lua5_3.meta.available ''
+        rm -rf third-party/lua53;    cp -r ${srcOnly lua5_3}/src third-party/lua53
+      ''}
+      ${lib.optionalString lua5_4.meta.available ''
+        rm -rf third-party/lua54;    cp -r ${srcOnly lua5_4}/src third-party/lua54
+      ''}
+      ${lib.optionalString lua5_5.meta.available ''
+        rm -rf third-party/lua55;    cp -r ${srcOnly lua5_5}/src third-party/lua55
+      ''}
+      ${lib.optionalString luajit_2_0.meta.available ''
+        rm -rf third-party/luajit20; cp -r ${srcOnly luajit_2_0} third-party/luajit20
+      ''}
+      ${lib.optionalString luajit_2_1.meta.available ''
+        rm -rf third-party/luajit21; cp -r ${srcOnly luajit_2_1} third-party/luajit21
+      ''}
       chmod -R +w third-party/*
     )
   '';