diff --git a/firefox.spec b/firefox.spec
index f1d3552..af425c2 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -769,6 +769,8 @@ chmod a-x third_party/rust/ash/src/extensions/nv/*.rs
 #---------------------------------------------------------------------
 
 %build
+# Disable LTO to work around rhbz#1883904
+%define _lto_cflags %{nil}
 ulimit -a
 free
 #set -e