diff --git a/0001-inspector-inject-cargo-dependency-in-runtime.patch b/0001-inspector-inject-cargo-dependency-in-runtime.patch
new file mode 100644
index 0000000..35e2831
--- /dev/null
+++ b/0001-inspector-inject-cargo-dependency-in-runtime.patch
@@ -0,0 +1,41 @@
+From 9e0a872ece6f5aedf76ffd67044f22c7d0cba8aa Mon Sep 17 00:00:00 2001
+From: Igor Gnatenko <ignatenkobrain@fedoraproject.org>
+Date: Fri, 20 Oct 2017 18:04:31 +0200
+Subject: [PATCH 1/2] inspector: inject cargo dependency in runtime
+
+Fixes: https://pagure.io/fedora-rust/rust2rpm/issue/42
+Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>
+---
+ rust2rpm/__main__.py  | 1 +
+ rust2rpm/inspector.py | 3 +++
+ 2 files changed, 4 insertions(+)
+
+diff --git a/rust2rpm/__main__.py b/rust2rpm/__main__.py
+index 0121a33..bb92fa3 100644
+--- a/rust2rpm/__main__.py
++++ b/rust2rpm/__main__.py
+@@ -91,6 +91,7 @@ Provides:       {{ prv }}
+ {% endfor %}
+ {% endif %}
+ {% if include_requires %}
++Requires:       cargo
+ {% if md.requires|length > 0 %}
+ # [dependencies]
+ {% for req in md.requires|sort(attribute="name") %}
+diff --git a/rust2rpm/inspector.py b/rust2rpm/inspector.py
+index d08f1aa..6ccdbc2 100644
+--- a/rust2rpm/inspector.py
++++ b/rust2rpm/inspector.py
+@@ -38,6 +38,9 @@ def main():
+             print_deps(list(itertools.chain(md.requires, md.build_requires)))
+         if args.test_requires:
+             print_deps(md.test_requires)
++        if args.requires:
++            # Someone should own /usr/share/cargo/registry
++            print("cargo")
+ 
+ if __name__ == "__main__":
+     main()
+-- 
+2.14.2
+
diff --git a/0002-inspector-inject-rust-packaging-dependency-in-buildt.patch b/0002-inspector-inject-rust-packaging-dependency-in-buildt.patch
new file mode 100644
index 0000000..44777cf
--- /dev/null
+++ b/0002-inspector-inject-rust-packaging-dependency-in-buildt.patch
@@ -0,0 +1,28 @@
+From 45a5caf30060c182fb0ae03a1a7e4e707599aaa3 Mon Sep 17 00:00:00 2001
+From: Igor Gnatenko <ignatenkobrain@fedoraproject.org>
+Date: Sat, 21 Oct 2017 09:45:30 +0200
+Subject: [PATCH 2/2] inspector: inject rust-packaging dependency in buildtime
+
+For consistency with previous commit.
+
+Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>
+---
+ rust2rpm/inspector.py | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/rust2rpm/inspector.py b/rust2rpm/inspector.py
+index 6ccdbc2..2d488b2 100644
+--- a/rust2rpm/inspector.py
++++ b/rust2rpm/inspector.py
+@@ -41,6 +41,8 @@ def main():
+         if args.requires:
+             # Someone should own /usr/share/cargo/registry
+             print("cargo")
++        if args.build_requires:
++            print("rust-packaging")
+ 
+ if __name__ == "__main__":
+     main()
+-- 
+2.14.2
+
diff --git a/rust-packaging.spec b/rust-packaging.spec
index 5de07c4..edae99b 100644
--- a/rust-packaging.spec
+++ b/rust-packaging.spec
@@ -2,12 +2,15 @@
 
 Name:           rust-packaging
 Version:        4
-Release:        3%{?dist}
+Release:        5%{?dist}
 Summary:        RPM macros for building Rust packages on various architectures
 
 License:        MIT
 URL:            https://pagure.io/fedora-rust/rust2rpm
 Source0:        https://releases.pagure.org/fedora-rust/rust2rpm/rust2rpm-%{version}.tar.xz
+# https://pagure.io/fedora-rust/rust2rpm/pull-request/43
+Patch0001:      0001-inspector-inject-cargo-dependency-in-runtime.patch
+Patch0002:      0002-inspector-inject-rust-packaging-dependency-in-buildt.patch
 
 BuildArch:      noarch
 ExclusiveArch:  %{rust_arches} noarch
@@ -83,6 +86,9 @@ py.test-%{python3_version} -v test.py
 %{python3_sitelib}/rust2rpm/
 
 %changelog
+* Sat Oct 21 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 4-5
+- Generate runtime dependencyon cargo for devel subpackages
+
 * Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 4-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild