1 files changed, 1 insertions, 1 deletions

diff --git a/lib/libalpm/backup.h b/lib/libalpm/backup.h
index dde907f0..6df8e251 100644
--- a/lib/libalpm/backup.h
+++ b/lib/libalpm/backup.h
@@ -23,7 +23,7 @@
 
 #include "alpm_list.h"
 
-char *_alpm_needbackup(const char *file, alpm_list_t *backup);
+char *_alpm_needbackup(const char *file, const alpm_list_t *backup);
 
 #endif /* _ALPM_BACKUP_H */