diff --git a/.gitignore b/.gitignore
index bb0a319..ddae5f2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ sparse-0.4.2.tar.bz2
 /sparse-0.6.1.tar.xz
 /sparse-0.6.2.tar.xz
 /sparse-0.6.3.tar.xz
+/sparse-0.6.4-rc1.tar.xz
diff --git a/sources b/sources
index 86efd81..a11fc8b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (sparse-0.6.3.tar.xz) = a8cab61efb4bae18184de71ae28f5043c5debe68a96dfee813b2fbc06e08b5e4380c31585197b6aa2c2156e2b793149a72d7b37f6c1d16f7913a27de38e5e102
+SHA512 (sparse-0.6.4-rc1.tar.xz) = 4a97d27af36db9b65b31167e46e7f89b4bce1ca7aabab96553dfbb85479bb10f11fb8769f6fc0e3e22a046799f3f08818675ed0fdde6e78d06991011889577f3
diff --git a/sparse.spec b/sparse.spec
index fa8944a..a15d613 100644
--- a/sparse.spec
+++ b/sparse.spec
@@ -1,6 +1,19 @@
 Name: sparse
-Version: 0.6.3
-Release: 3%{?dist}
+
+Version: 0.6.4
+
+# either a rc? or %{nil}
+%define rcver rc1
+
+%if "x%{?rcver}" != "x"
+%define build_ver	%{version}-%{rcver}
+%define dotrc		.%{rcver}
+%else
+%define build_ver	%{version}
+%define dotrc 		%{nil}
+%endif
+
+Release: 1%{dotrc}%{?dist}
 Summary:    A semantic parser of source files
 License:    MIT
 URL:        https://sparse.wiki.kernel.org
@@ -9,7 +22,7 @@ BuildRequires: gcc
 BuildRequires: libxml2-devel gtk2-devel
 BuildRequires: sqlite-devel
 
-Source0:    https://www.kernel.org/pub/software/devel/sparse/dist/sparse-%{version}.tar.xz
+Source0:    https://www.kernel.org/pub/software/devel/sparse/dist/sparse-%{build_ver}.tar.xz
 
 %description
 Sparse is a semantic parser of source files: it's neither a compiler
@@ -28,7 +41,7 @@ that the grouping implies.
 Sparse is primarily used in the development and debugging of the Linux kernel.
 
 %prep
-%setup -q
+%setup -q -n sparse-%{build_ver}
 
 %define make_destdir \
 make DESTDIR="%{buildroot}" PREFIX="%{_prefix}" \\\
@@ -62,6 +75,9 @@ make clean
 %{_mandir}/man1/*
 
 %changelog
+- Wed Sep 01 2021 Jeff Layton <jlayton@redhat.com> - 0.6.4.rc1-1
+- Update to 0.6.4-rc1 release
+
 * Fri Jul 23 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.6.3-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild