diff --git a/main.c b/main.c
index 6f45dc61..6e461780 100644
--- a/main.c
+++ b/main.c
@@ -3243,42 +3243,6 @@ err_out:
 	return false;
 }
 
-struct swa {
-	struct thr_info *thr;
-	const struct work *work_in;
-};
-
-static void *swasync_thread(void *userdata)
-{
-	struct swa *swa = (struct swa *)userdata;
-
-	/* Return value ignored */
-	submit_work_sync(swa->thr, swa->work_in);
-	free(swa);
-	return NULL;
-}
-
-static bool submit_work_async(struct thr_info *thr, const struct work *work_in)
-{
-	pthread_t sw_thread;
-	struct swa *swa;
-
-	swa = malloc(sizeof(struct swa));
-	if (unlikely(!swa)) {
-		applog(LOG_ERR, "Failed to malloc swa in submit_work_async");
-		return false;
-	}
-
-	swa->thr = thr;
-	swa->work_in = work_in;
-
-	if (unlikely(pthread_create(&sw_thread, NULL, swasync_thread, (void *)swa))) {
-		applog(LOG_ERR, "Failed to create swasync_thread");
-		return false;
-	}
-	return true;
-}
-
 bool submit_nonce(struct thr_info *thr, struct work *work, uint32_t nonce)
 {
 	work->data[64+12+0] = (nonce>>0) & 0xff;
@@ -3469,7 +3433,7 @@ static void *miner_thread(void *userdata)
 		if (unlikely(rc)) {
 			if (opt_debug)
 				applog(LOG_DEBUG, "CPU %d found something?", dev_from_id(thr_id));
-			if (unlikely(!submit_work_async(mythr, work))) {
+			if (unlikely(!submit_work_sync(mythr, work))) {
 				applog(LOG_ERR, "Failed to submit_work_sync in miner_thread %d", thr_id);
 				break;
 			}