diff --git a/unison.changes b/unison.changes
index 54c8791..ac47237 100644
--- a/unison.changes
+++ b/unison.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Nov  1 11:21:31 UTC 2019 - olaf@aepfle.de
+
+- Require lablgtk2 < 2.18.8
+
 -------------------------------------------------------------------
 Mon Nov 13 07:13:47 UTC 2017 - okurz@suse.com
 
diff --git a/unison.spec b/unison.spec
index 0c39e47..997dac8 100644
--- a/unison.spec
+++ b/unison.spec
@@ -30,7 +30,7 @@ Source2:        %{name}.desktop
 Source3:        %{name}.png
 BuildRequires:  gtk2-devel
 BuildRequires:  ncurses-devel
-BuildRequires:  ocaml-lablgtk2-devel
+BuildRequires:  ocaml-lablgtk2-devel < 2.18.8
 BuildRequires:  ocaml-rpm-macros >= 4.03.0
 BuildRequires:  update-desktop-files
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build