Make backends self-describing

1 files changed, 1 insertions, 1 deletions

diff --git a/src/imv.h b/src/imv.h
index 594ce33..8966e69 100644
--- a/src/imv.h
+++ b/src/imv.h
@@ -10,7 +10,7 @@ struct imv *imv_create(void);
 void imv_free(struct imv *imv);
 
 /* Used in reverse addition order. Most recently added is the first used. */
-void imv_install_backend(struct imv *imv, struct imv_backend *backend);
+void imv_install_backend(struct imv *imv, const struct imv_backend *backend);
 
 bool imv_load_config(struct imv *imv);
 bool imv_parse_args(struct imv *imv, int argc, char **argv);