1 files changed, 1 insertions, 1 deletions

diff --git a/xdelta3/xdelta3-internal.h b/xdelta3/xdelta3-internal.h
index 13f4a34..122cc02 100644
--- a/xdelta3/xdelta3-internal.h
+++ b/xdelta3/xdelta3-internal.h
@@ -40,7 +40,7 @@ int main_file_read (main_file  *ifile,
                     const char *msg);
 int main_file_write (main_file *ofile, uint8_t *buf, 
                      usize_t size, const char *msg);
-usize_t xd3_bytes_on_srcblk (xd3_source *src, xoff_t blkno);
+xoff_t xd3_bytes_on_srcblk (xd3_source *src, xoff_t blkno);
 xoff_t xd3_source_eof(const xd3_source *src);
 uint32_t xd3_large_cksum_update (uint32_t cksum,
                                  const uint8_t *base,