1 files changed, 4 insertions, 4 deletions
diff --git a/macros/latex/contrib/l3build/l3build-arguments.lua b/macros/latex/contrib/l3build/l3build-arguments.lua
index 49c80a7596..76b661e26c 100644
--- a/macros/latex/contrib/l3build/l3build-arguments.lua
+++ b/macros/latex/contrib/l3build/l3build-arguments.lua
@@ -291,16 +291,16 @@ end
 options = argparse()
 
 -- Sanity check
-function check_engines()
+function check_engines(config)
   if options["engine"] and not options["force"] then
-     -- Make a lookup table
-     local t = { }
+    -- Make a lookup table
+    local t = { }
     for _, engine in pairs(checkengines) do
       t[engine] = true
     end
     for _, engine in pairs(options["engine"]) do
       if not t[engine] then
-        print("\n! Error: Engine \"" .. engine .. "\" not set up for testing!")
+        print("\n! Error: Engine \"" .. engine .. "\" not set up for testing with configuration " .. config .. "!")
         print("\n  Valid values are:")
         for _, engine in ipairs(checkengines) do
           print("  - " .. engine)