diff --git a/ghc-hslua.spec b/ghc-hslua.spec
index fa368b2..16c562e 100644
--- a/ghc-hslua.spec
+++ b/ghc-hslua.spec
@@ -14,6 +14,7 @@ Summary:        A Lua language interpreter embedding in Haskell
 License:        MIT
 Url:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkgver}/%{pkgver}.tar.gz
+Patch0:         hslua-system-lua.patch
 
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-rpm-macros
@@ -23,7 +24,7 @@ BuildRequires:  ghc-containers-devel
 BuildRequires:  ghc-exceptions-devel
 BuildRequires:  ghc-mtl-devel
 BuildRequires:  ghc-text-devel
-BuildRequires:  pkgconfig(luajit)
+BuildRequires:  pkgconfig(lua)
 %if %{with tests}
 BuildRequires:  ghc-QuickCheck-devel
 BuildRequires:  ghc-quickcheck-instances-devel
@@ -50,7 +51,7 @@ Requires(postun): ghc-compiler = %{ghc_version}
 %endif
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 # Begin cabal-rpm deps:
-Requires:       pkgconfig(luajit)
+Requires:       pkgconfig(lua)
 # End cabal-rpm deps
 
 %description devel
@@ -59,13 +60,14 @@ This package provides the Haskell %{pkg_name} library development files.
 
 %prep
 %setup -q -n %{pkgver}
-cabal-tweak-drop-dep ', fail       >= 4.9    && < 5'
-cabal-tweak-flag system-lua True
-cabal-tweak-flag use-pkgconfig True
+%patch0 -p1 -b .orig
+sed -i "/fail /d" hslua.cabal
+#cabal-tweak-drop-dep '\", fail       >= 4.9    && < 5\"'
 rm -r lua-5.3.4
 
 
 %build
+%define cabal_configure_options -f -luajit -f use-pkgconfig
 %ghc_lib_build
 
 
diff --git a/hslua-system-lua.patch b/hslua-system-lua.patch
index 3089e5a..af8d85c 100644
--- a/hslua-system-lua.patch
+++ b/hslua-system-lua.patch
@@ -1,11 +1,31 @@
---- hslua-0.4.1/hslua.cabal~	2015-09-09 06:23:09.000000000 +0900
-+++ hslua-0.4.1/hslua.cabal	2016-06-28 10:21:53.952491564 +0900
-@@ -50,7 +50,7 @@
-     if flag(luajit)
-       Extra-libraries:  luajit-5.1
-     else
--      Extra-libraries:  lua
-+      Pkgconfig-depends:  lua-5.1
-     includes:           lua.h
-   else
-     c-sources:          lua-5.1.5/lobject.c, lua-5.1.5/ltm.c, lua-5.1.5/ldblib.c,
+--- hslua-0.9.5/hslua.cabal.orig	2018-01-04 23:32:01.000000000 +0100
++++ hslua-0.9.5/hslua.cabal	2018-01-30 00:14:21.052923877 +0100
+@@ -35,7 +35,8 @@
+ 
+ flag system-lua
+   description:          Use the system-wide Lua instead of the bundled copy.
+-  default:              False
++  default:              True
++  manual: True
+ 
+ flag apicheck
+   description:          Compile Lua with -DLUA_USE_APICHECK.
+@@ -60,6 +61,7 @@
+ flag luajit
+   description:          Link with LuaJIT.  This implies flag system-lua as well.
+   default:              False
++  manual: True
+ 
+ flag lua501
+   description:          Build against lua 5.1.
+@@ -115,7 +116,7 @@
+           if flag(lua502)
+             pkgconfig-depends: lua5.2
+           else
+-            pkgconfig-depends: lua5.3
++            pkgconfig-depends: lua
+       else
+         Extra-libraries:  lua
+     if !flag(use-pkgconfig)
+
+Diff finished.  Tue Jan 30 00:14:26 2018