diff --git a/src/libsystemd/sd-journal/sd-journal.c b/src/libsystemd/sd-journal/sd-journal.c
index 705a35de3f..296a6c6844 100644
--- a/src/libsystemd/sd-journal/sd-journal.c
+++ b/src/libsystemd/sd-journal/sd-journal.c
@@ -990,6 +990,8 @@ _public_ int sd_journal_seek_cursor(sd_journal *j, const char *cursor) {
                 case 'b':
                         boot_id_set = true;
                         r = sd_id128_from_string(word + 2, &boot_id);
+                        if (r < 0)
+                                return r;
                         break;
 
                 case 'm':