diff --git a/baselibs.conf b/baselibs.conf
new file mode 100644
index 0000000..e071acf
--- /dev/null
+++ b/baselibs.conf
@@ -0,0 +1 @@
+liburcu6
diff --git a/userspace-rcu.changes b/userspace-rcu.changes
index dfb69c0..d615cc1 100644
--- a/userspace-rcu.changes
+++ b/userspace-rcu.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Nov 29 09:37:35 UTC 2017 - dimstar@opensuse.org
+
+- Add baselibs.conf: create liburcu6-32bit package as a dependency
+  to liblttng-ust0-32bit.
+
 -------------------------------------------------------------------
 Fri Sep  1 18:56:18 UTC 2017 - tonyj@suse.com
 
diff --git a/userspace-rcu.spec b/userspace-rcu.spec
index f560e63..9a62363 100644
--- a/userspace-rcu.spec
+++ b/userspace-rcu.spec
@@ -28,6 +28,7 @@ Group:          System/Libraries
 Source0:        http://lttng.org/files/urcu/userspace-rcu-%{version}.tar.bz2
 Source1:        http://lttng.org/files/urcu/userspace-rcu-%{version}.tar.bz2.asc
 Source2:        userspace-rcu.keyring
+Source99:       baselibs.conf
 Url:            http://lttng.org/urcu
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  automake