1 files changed, 1 insertions, 1 deletions

diff --git a/src/include/gnunet_fs_service.h b/src/include/gnunet_fs_service.h
index 686035e2c..96936bad2 100644
--- a/src/include/gnunet_fs_service.h
+++ b/src/include/gnunet_fs_service.h
@@ -1729,7 +1729,7 @@ GNUNET_FS_file_information_get_id (struct GNUNET_FS_FileInformation *s);
  * @return "filename" field of the structure (can be NULL)
  */
 const char *
-GNUNET_FS_file_information_get_filename (struct GNUNET_FS_FileInformation *s);
+GNUNET_FS_file_information_get_filename (const struct GNUNET_FS_FileInformation *s);
 
 
 /**