diff --git a/src/shared/utmp-wtmp.c b/src/shared/utmp-wtmp.c
index eec3c354473..6c3238a9c6a 100644
--- a/src/shared/utmp-wtmp.c
+++ b/src/shared/utmp-wtmp.c
@@ -221,7 +221,7 @@ int utmp_put_dead_process(const char *id, pid_t pid, int code, int status) {
         utmpx = utxent_start();
 
         /* Copy the whole string if it fits, or just the suffix without the terminating NUL. */
-        copy_suffix(store.ut_id, sizeof(store.ut_id), id);
+        copy_suffix(lookup.ut_id, sizeof(lookup.ut_id), id);
 
         found = getutxid(&lookup);
         if (!found)