diff --git a/src/cryptenroll/cryptenroll.c b/src/cryptenroll/cryptenroll.c
index e1fdc3f5f02..79d06e7414e 100644
--- a/src/cryptenroll/cryptenroll.c
+++ b/src/cryptenroll/cryptenroll.c
@@ -601,7 +601,7 @@ static int load_volume_key_keyfile(
         r = read_full_file_full(
                         AT_FDCWD,
                         arg_unlock_keyfile,
-                        0,
+                        UINT64_MAX,
                         SIZE_MAX,
                         READ_FULL_FILE_SECURE|READ_FULL_FILE_WARN_WORLD_READABLE|READ_FULL_FILE_CONNECT_SOCKET,
                         NULL,