diff --git a/ocaml.spec b/ocaml.spec
index d994957..29c37ff 100644
--- a/ocaml.spec
+++ b/ocaml.spec
@@ -74,6 +74,7 @@ Patch0011:      0011-configure-Remove-incorrect-assumption-about-cross-co.patch
 # https://github.com/nojb/riscv-ocaml
 Patch0012:      0012-Add-riscv64-backend.patch
 
+BuildRequires:  git
 BuildRequires:  gcc
 BuildRequires:  autoconf
 BuildRequires:  binutils-devel
@@ -186,8 +187,7 @@ may not be portable between versions.
 
 
 %prep
-%setup -q -T -b 0 -n %{name}-%{version}%{rcver}
-%autopatch -p1
+%autosetup -S git -n %{name}-%{version}%{rcver}
 # Patches touch configure.ac, so rebuild it:
 autoconf --force
 
@@ -391,6 +391,7 @@ find $RPM_BUILD_ROOT \( -name '*.cmt' -o -name '*.cmti' \) -a -delete
 %changelog
 * Thu Dec 05 2019 Richard W.M. Jones <rjones@redhat.com> - 4.09.0-1
 - OCaml 4.09.0 final.
+- Use autosetup, remove old setup line.
 
 * Fri Aug 16 2019 Richard W.M. Jones <rjones@redhat.com> - 4.08.1-1
 - OCaml 4.08.1 final.