diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index 9c1a43d..a61c4a8 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Apr 24 17:26:44 UTC 2019 - Martin Liška <mliska@suse.cz>
+
+- Disable LTO (boo#1133267).
+
 -------------------------------------------------------------------
 Sat Mar 30 11:36:41 UTC 2019 - Manfred Hollstein <manfred.h@gmx.net>
 
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index d1b0b09..866e828 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -209,6 +209,7 @@ symbols meant for upload to Mozilla's crash collector database.
 %patch12 -p1
 
 %build
+%define _lto_cflags %{nil}
 # no need to add build time to binaries
 modified="$(sed -n '/^----/n;s/ - .*$//;p;q' "%{_sourcedir}/%{name}.changes")"
 DATE="\"$(date -d "${modified}" "+%%b %%e %%Y")\""