diff --git a/include/plat/common/platform.h b/include/plat/common/platform.h
index 9a61b50..5a8f5a3 100644
--- a/include/plat/common/platform.h
+++ b/include/plat/common/platform.h
@@ -389,6 +389,6 @@
 int plat_fwu_set_metadata_image_source(unsigned int image_id,
 				       uintptr_t *dev_handle,
 				       uintptr_t *image_spec);
-void plat_fwu_set_images_source(struct fwu_metadata *metadata);
+void plat_fwu_set_images_source(const struct fwu_metadata *metadata);
 
 #endif /* PLATFORM_H */