diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index e297c4f..281c74a 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -397,6 +397,12 @@ module = {
 };
 
 module = {
+  name = fw;
+  common = bus/fw.c;
+  enable = pci;
+};
+
+module = {
   name = pci;
   noemu = bus/pci.c;
   emu = bus/emu/pci.c;