diff --git a/linux-tkg-config/prepare b/linux-tkg-config/prepare
index a53b371..1d8df50 100644
--- a/linux-tkg-config/prepare
+++ b/linux-tkg-config/prepare
@@ -591,9 +591,15 @@ _tkg_srcprep() {
     if [ "$_lto_mode" = "full" ]; then
       _enable LTO_CLANG_FULL
       _disable LTO_CLANG_THIN
+      _disable LTO_NONE
     elif [ "$_lto_mode" = "thin" ]; then
       _disable LTO_CLANG_FULL
       _enable LTO_CLANG_THIN
+      _disable LTO_NONE
+    else
+      _disable LTO_CLANG_FULL
+      _disable LTO_CLANG_THIN
+      _enable LTO_NONE
     fi
   fi
   # Void uses LibreSSL