diff --git a/.gitignore b/.gitignore
index 0312ed9..c2202ec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /der-0.4.5.crate
 /der-0.7.6.crate
 /der-0.7.7.crate
+/der-0.7.8.crate
diff --git a/rust-der.spec b/rust-der.spec
index 25e2ad6..c4b8dcb 100644
--- a/rust-der.spec
+++ b/rust-der.spec
@@ -5,7 +5,7 @@
 %global crate der
 
 Name:           rust-der
-Version:        0.7.7
+Version:        0.7.8
 Release:        %autorelease
 Summary:        Pure Rust embedded-friendly implementation of DER for ASN.1
 
@@ -74,6 +74,18 @@ use the "arbitrary" feature of the "%{crate}" crate.
 %files       -n %{name}+arbitrary-devel
 %ghost %{crate_instdir}/Cargo.toml
 
+%package     -n %{name}+bytes-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+bytes-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "bytes" feature of the "%{crate}" crate.
+
+%files       -n %{name}+bytes-devel
+%ghost %{crate_instdir}/Cargo.toml
+
 %package     -n %{name}+derive-devel
 Summary:        %{summary}
 BuildArch:      noarch
diff --git a/rust2rpm.conf b/rust2rpm.conf
new file mode 100644
index 0000000..e3e213b
--- /dev/null
+++ b/rust2rpm.conf
@@ -0,0 +1,2 @@
+[DEFAULT]
+summary = Pure Rust embedded-friendly implementation of DER for ASN.1
diff --git a/sources b/sources
index 5802d74..b8c1b47 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (der-0.7.7.crate) = 2d5b5e759155dbebc2529b44e6316f9775ac9b60f9eb6ae54f9d12d40b2dafa70d0c2f3c9912a35593d78933c3a76dad3a686b35bc47034db96fc5eae2729547
+SHA512 (der-0.7.8.crate) = 9cc5995cdb99c376cba473d2db476d81c824cc47c1924cf9c58d37a5508e2d01d3f10a009515d2ab456b1577af8de94e195bb315f61516029307ed860bc403dd