diff --git a/firefox.spec b/firefox.spec
index e9cb490..8fe2e2f 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -614,10 +614,12 @@ echo "export RANLIB=\"gcc-ranlib\"" >> .mozconfig
 %endif
 %if 0%{?build_with_pgo}
 echo "ac_add_options MOZ_PGO=1" >> .mozconfig
+
 # Temporary disabled due to GCC bug
 # Fixed by https://bugzilla.mozilla.org/show_bug.cgi?id=1671345
 # Should be in Firefox 83
-echo "ac_add_options --enable-lto" >> .mozconfig
+# echo "ac_add_options --enable-lto" >> .mozconfig
+
 # PGO build doesn't work with ccache
 export CCACHE_DISABLE=1
 %endif