--- a/hslua.cabal
+++ b/hslua.cabal
@@ -23,14 +23,14 @@
 
 flag system-lua
   description:          Use the system-wide lua instead of the bundled copy
-  default:              False
+  default:              True
 
 Library
   Build-depends:        base==4.*, mtl >= 2.1
   Exposed-modules:      Scripting.Lua, Scripting.Lua.ConfigFile
   Hs-source-dirs:       src
   if flag(system-lua)
-    Pkgconfig-depends:  lua
+    Pkgconfig-depends:  lua5.1
     C-sources:          cbits/ntrljmp.c
     Include-dirs:       cbits
   else