diff --git a/include/linux/mpi.h b/include/linux/mpi.h
index d02cca6..5af1b81 100644
--- a/include/linux/mpi.h
+++ b/include/linux/mpi.h
@@ -76,6 +76,7 @@
 
 /*-- mpicoder.c --*/
 MPI do_encode_md(const void *sha_buffer, unsigned nbits);
+MPI mpi_read_raw_data(const void *xbuffer, size_t nbytes);
 MPI mpi_read_from_buffer(const void *buffer, unsigned *ret_nread);
 int mpi_fromstr(MPI val, const char *str);
 u32 mpi_get_keyid(MPI a, u32 *keyid);