diff --git a/.gitignore b/.gitignore
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index 0000000..c547143
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/compsize-1.1.tar.gz
diff --git a/README.md b/README.md
deleted file mode 100644
index 4674aa2..0000000
--- a/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# compsize
-
-The compsize package
\ No newline at end of file
diff --git a/compsize.spec b/compsize.spec
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--- /dev/null
+++ b/compsize.spec
@@ -0,0 +1,37 @@
+Name:           compsize
+Version:        1.1
+Release:        1%{?dist}
+Summary:        Utility for measuring compression ratio of files on btrfs
+License:        GPLv2+
+URL:            https://github.com/kilobyte/compsize
+Source:         https://github.com/kilobyte/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
+BuildRequires:  gcc
+BuildRequires:  btrfs-progs-devel
+
+%description
+compsize takes a list of files (given as arguments) on a btrfs filesystem and
+measures used compression types and effective compression ratio, producing
+a report.
+
+%prep
+%autosetup
+
+%build
+export CFLAGS="%{optflags}"
+export CXXFLAGS="%{optflags}"
+export LDFLAGS="%{__global_ldflags}"
+%make_build
+
+%install
+install -D -m 0755 %{name} %{buildroot}%{_bindir}/%{name}
+install -D -m 0644 %{name}.8 %{buildroot}%{_mandir}/man8/%{name}.8
+
+%files
+%doc README.md
+%license LICENSE
+%{_bindir}/%{name}
+%{_mandir}/man8/%{name}.8*
+
+%changelog
+* Fri Mar 23 2018 Juan Orti Alcaine <jorti@fedoraproject.org> - 1.1-1
+- Initial release
diff --git a/sources b/sources
new file mode 100644
index 0000000..e900c39
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (compsize-1.1.tar.gz) = 1c7de5156b695ffa4be9b634fd6224214d3de1653eb23e5d85b250e27146fe655883bed17ed458bae1b448ed9ae8a254d2a673fdb3860e69c99f8676daea0d8b