diff --git a/tk.changes b/tk.changes
index f1e088d..5040c05 100644
--- a/tk.changes
+++ b/tk.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Jul 23 06:58:55 UTC 2019 - Reinhard Max <max@suse.com>
+
+- Use FAT LTO objects in order to provide proper static
+  library (boo#1138797).
+
 -------------------------------------------------------------------
 Wed Dec 12 16:57:36 UTC 2018 - Reinhard Max <max@suse.com>
 
diff --git a/tk.spec b/tk.spec
index 7d8d8d8..0ea1342 100644
--- a/tk.spec
+++ b/tk.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package tk
 #
-# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -100,6 +100,7 @@ Authors:
 %patch1 -p1
 
 %build
+%global _lto_cflags %{_lto_cflags} -ffat-lto-objects
 cd unix
 %configure \
 	--with-tcl=%_libdir \