diff --git a/deps/worker.c b/deps/worker.c
index 44e2b8e..4b8af23 100644
--- a/deps/worker.c
+++ b/deps/worker.c
@@ -144,10 +144,10 @@ static void *worker_entry(void *arg) {
         ts.tv_sec += 1;
         pthread_cond_timedwait(&thread->cond, &thread->mu, &ts);
         if (thread->len == 0) {
-            thread->th = 0;
             if (!thread->end) {
                 pthread_detach(thread->th);
             }
+            thread->th = 0;
             thread->end = false;
             break;
         }
diff --git a/neco.c b/neco.c
index 322265c..51d8110 100644
--- a/neco.c
+++ b/neco.c
@@ -2739,10 +2739,10 @@ static void *worker_entry(void *arg) {
         ts.tv_sec += 1;
         pthread_cond_timedwait(&thread->cond, &thread->mu, &ts);
         if (thread->len == 0) {
-            thread->th = 0;
             if (!thread->end) {
                 pthread_detach(thread->th);
             }
+            thread->th = 0;
             thread->end = false;
             break;
         }