diff --git a/ChangeLog b/ChangeLog
index d81730900..ee26842b7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-12-14  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/kern/i386/qemu/init.c (resource): Decrease struct size
+	by using bitfields.
+
 2013-12-14  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* grub-core/boot/i386/qemu/boot.S: Add missing EXT_C.
diff --git a/grub-core/kern/i386/qemu/init.c b/grub-core/kern/i386/qemu/init.c
index 09da1e97f..271b6fbfa 100644
--- a/grub-core/kern/i386/qemu/init.c
+++ b/grub-core/kern/i386/qemu/init.c
@@ -85,9 +85,9 @@ heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
 struct resource
 {
   grub_pci_device_t dev;
-  int type;
   grub_size_t size;
-  int bar;
+  unsigned type:4;
+  unsigned bar:3;
 };
 
 struct iterator_ctx