diff --git a/baselibs.conf b/baselibs.conf
new file mode 100644
index 0000000..d8e03b8
--- /dev/null
+++ b/baselibs.conf
@@ -0,0 +1,4 @@
+libbrotlicommon1
+libbrotlidec1
+libbrotlienc1
+
diff --git a/brotli.changes b/brotli.changes
index 76b6883..be55a08 100644
--- a/brotli.changes
+++ b/brotli.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Jul 25 13:14:15 UTC 2018 - bjorn.lie@gmail.com
+
+- Add baselibs.conf, build 32bit library support.
+
 -------------------------------------------------------------------
 Tue Jul 24 07:55:04 UTC 2018 - mpluskal@suse.com
 
diff --git a/brotli.spec b/brotli.spec
index 195b8b7..fb7560d 100644
--- a/brotli.spec
+++ b/brotli.spec
@@ -27,6 +27,7 @@ License:        MIT
 Group:          Productivity/Archiving/Compression
 Url:            https://github.com/google/brotli
 Source0:        https://github.com/google/brotli/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
+Source99:       baselibs.conf
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  cmake >= 2.8.6
 BuildRequires:  gcc-c++