diff --git a/ocaml-augeas-0.5-use-ocamlopt-g.patch b/ocaml-augeas-0.5-use-ocamlopt-g.patch
new file mode 100644
index 0000000..f39110d
--- /dev/null
+++ b/ocaml-augeas-0.5-use-ocamlopt-g.patch
@@ -0,0 +1,13 @@
+--- ocaml-augeas-0.5/Makefile.in.old	2012-06-11 14:02:39.000000000 +0100
++++ ocaml-augeas-0.5/Makefile.in	2013-09-14 11:29:45.133175512 +0100
+@@ -33,8 +33,8 @@
+ 
+ OCAMLCFLAGS	= -g
+ OCAMLCPACKAGES	=
+-OCAMLOPTFLAGS	=
+-OCAMLOPTPACKAGES =
++OCAMLOPTFLAGS	= $(OCAMLCFLAGS)
++OCAMLOPTPACKAGES = $(OCAMLCPACKAGES)
+ 
+ OCAMLDOCFLAGS	= -html -sort
+ 
diff --git a/ocaml-augeas.spec b/ocaml-augeas.spec
index b1e74b6..8d9e18d 100644
--- a/ocaml-augeas.spec
+++ b/ocaml-augeas.spec
@@ -1,16 +1,16 @@
-%define opt %(test -x %{_bindir}/ocamlopt && echo 1 || echo 0)
-%define debug_package %{nil}
+%global opt %(test -x %{_bindir}/ocamlopt && echo 1 || echo 0)
 
 Name:           ocaml-augeas
 Version:        0.5
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        OCaml bindings for Augeas configuration API
-
-Group:          Development/Libraries
 License:        LGPLv2+ with exceptions
+
 URL:            http://people.redhat.com/~rjones/augeas/files/
 Source0:        http://people.redhat.com/~rjones/augeas/files/%{name}-%{version}.tar.gz
 
+Patch1:         ocaml-augeas-0.5-use-ocamlopt-g.patch
+
 ExcludeArch:    sparc64 s390 s390x
 
 BuildRequires:  ocaml >= 3.09.0
@@ -38,6 +38,7 @@ developing applications that use %{name}.
 
 %prep
 %setup -q
+%patch1 -p1
 
 
 %build
@@ -60,7 +61,6 @@ mkdir -p $OCAMLFIND_DESTDIR $OCAMLFIND_DESTDIR/stublibs
 #make install
 ocamlfind install augeas META *.mli *.cmx *.cma *.cmxa *.a augeas.cmi *.so
 
-strip $OCAMLFIND_DESTDIR/stublibs/dll*.so
 chrpath --delete $OCAMLFIND_DESTDIR/stublibs/dll*.so
 
 
@@ -88,6 +88,10 @@ chrpath --delete $OCAMLFIND_DESTDIR/stublibs/dll*.so
 
 
 %changelog
+* Sat Sep 14 2013 Richard W.M. Jones <rjones@redhat.com> - 0.5-6
+- Rebuild for OCaml 4.01.0.
+- Enable debuginfo.
+
 * Sat Aug 03 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.5-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild