diff --git a/commands/bootm.c b/commands/bootm.c
index 14475c7..0d3649f 100644
--- a/commands/bootm.c
+++ b/commands/bootm.c
@@ -225,7 +225,7 @@
 }
 EXPORT_SYMBOL(unmap_image);
 
-LIST_HEAD(handler_list);
+static LIST_HEAD(handler_list);
 
 int register_image_handler(struct image_handler *handler)
 {
diff --git a/include/image.h b/include/image.h
index a42d06b..8932947 100644
--- a/include/image.h
+++ b/include/image.h
@@ -336,6 +336,7 @@
  * image.
  */
 struct image_handle *map_image(const char *filename, int verify);
+void unmap_image(struct image_handle *handle);
 
 /*
  * Relocate an image to load_address by uncompressing