diff --git a/util/cbfstool/common.h b/util/cbfstool/common.h
index bb18ee1..bd5ef65 100644
--- a/util/cbfstool/common.h
+++ b/util/cbfstool/common.h
@@ -72,8 +72,13 @@
 
 uint64_t intfiletype(const char *name);
 
+/* cbfs-mkpayload.c */
 int parse_elf_to_payload(unsigned char *input, unsigned char **output,
 			 comp_algo algo);
+int parse_flat_binary_to_payload(unsigned char *input, unsigned char **output,
+				 int32_t input_size, uint32_t loadaddress,
+				 uint32_t entrypoint, comp_algo algo);
+/* cbfs-mkstage.c */
 int parse_elf_to_stage(unsigned char *input, unsigned char **output,
 		       comp_algo algo, uint32_t * location);