diff --git a/extensions/lua.interp.in b/extensions/lua.interp.in
index 183a754aaf..0a6c22bb19 100644
--- a/extensions/lua.interp.in
+++ b/extensions/lua.interp.in
@@ -1,5 +1,5 @@
-lua=@LUA_PATH@luajit.exe
-luajit=@LUA_PATH@luajit.exe
-/usr/bin/luajit=@LUA_PATH@luajit.exe
-/usr/bin/lua=@LUA_PATH@luajit.exe
-:Lua:E::lua::luajit:
+lua=@LUA_PATH@
+luajit=@LUA_PATH@
+/usr/bin/luajit=@LUA_PATH@
+/usr/bin/lua=@LUA_PATH@
+:Lua:E::lua::@LUA_PATH@:
diff --git a/extensions/meson.build b/extensions/meson.build
index 3bb1681644..1a526eb309 100644
--- a/extensions/meson.build
+++ b/extensions/meson.build
@@ -1,15 +1,19 @@
 subdir('goat-exercises')
 
-# Fallback fix to the problem of non-configured interpreters
-if platform_windows and not meson.is_cross_build() and lua.found()
+if not meson.is_cross_build() and lua.found() and (platform_windows or not relocatable_bundle)
   lua_config = configuration_data()
-  lua_config.set('LUA_PATH', '')
+  # For Windows, we set the binary name only.
+  # For other OSes, we use the full path (when not in a relocatable
+  # bundle).
+  if platform_windows
+    lua_config.set('LUA_PATH', lua_bin + '.exe')
+  else
+    lua_config.set('LUA_PATH', lua.full_path())
+  endif
 
-  configure_file(
-    input : 'lua.interp.in',
-    output: 'lua.interp',
-    configuration: lua_config,
-    install: true,
-    install_dir: gimpplugindir / 'interpreters',
-  )
-endif
\ No newline at end of file
+  configure_file(input : 'lua.interp.in',
+                 output: 'lua.interp',
+                 configuration: lua_config,
+                 install: true,
+                 install_dir: gimpplugindir / 'interpreters')
+endif