diff --git a/include/spdk_internal/accel_module.h b/include/spdk_internal/accel_module.h
index ee69a299e..90c9a08d4 100644
--- a/include/spdk_internal/accel_module.h
+++ b/include/spdk_internal/accel_module.h
@@ -63,7 +63,6 @@ struct spdk_accel_task {
 			struct iovec		*iovs;
 			uint32_t		iovcnt;
 		} s2;
-		void			*dst;
 	};
 	union {
 		struct {
@@ -81,10 +80,7 @@ struct spdk_accel_task {
 	};
 	enum accel_opcode		op_code;
 	uint64_t			nbytes;
-	union {
-		uint64_t		nbytes_dst; /* for compress op */
-		uint64_t		iv; /* Initialization vector (tweak) for crypto op */
-	};
+	uint64_t			iv; /* Initialization vector (tweak) for crypto op */
 	int				flags;
 	int				status;
 	struct iovec			aux_iovs[SPDK_ACCEL_AUX_IOV_MAX];
diff --git a/lib/accel/accel.c b/lib/accel/accel.c
index fbb5a4f35..92dbdf85a 100644
--- a/lib/accel/accel.c
+++ b/lib/accel/accel.c
@@ -502,23 +502,19 @@ spdk_accel_submit_compress(struct spdk_io_channel *ch, void *dst, uint64_t nbyte
 	struct spdk_accel_task *accel_task;
 	struct spdk_accel_module_if *module = g_modules_opc[ACCEL_OPC_COMPRESS];
 	struct spdk_io_channel *module_ch = accel_ch->module_ch[ACCEL_OPC_COMPRESS];
-	size_t i, src_len = 0;
 
 	accel_task = _get_task(accel_ch, cb_fn, cb_arg);
 	if (accel_task == NULL) {
 		return -ENOMEM;
 	}
 
-	for (i = 0; i < src_iovcnt; i++) {
-		src_len +=  src_iovs[i].iov_len;
-	}
-
-	accel_task->nbytes = src_len;
+	accel_task->d.iovs = &accel_task->aux_iovs[SPDK_ACCEL_AUX_IOV_DST];
+	accel_task->d.iovs[0].iov_base = dst;
+	accel_task->d.iovs[0].iov_len = nbytes;
+	accel_task->d.iovcnt = 1;
 	accel_task->output_size = output_size;
 	accel_task->s.iovs = src_iovs;
 	accel_task->s.iovcnt = src_iovcnt;
-	accel_task->dst = dst;
-	accel_task->nbytes_dst = nbytes;
 	accel_task->flags = flags;
 	accel_task->op_code = ACCEL_OPC_COMPRESS;
 	accel_task->src_domain = NULL;
diff --git a/lib/accel/accel_sw.c b/lib/accel/accel_sw.c
index 1306066c7..0029ca8df 100644
--- a/lib/accel/accel_sw.c
+++ b/lib/accel/accel_sw.c
@@ -239,13 +239,14 @@ _sw_accel_compress(struct sw_accel_io_channel *sw_ch, struct spdk_accel_task *ac
 	size_t last_seglen = accel_task->s.iovs[accel_task->s.iovcnt - 1].iov_len;
 	struct iovec *siov = accel_task->s.iovs;
 	struct iovec *diov = accel_task->d.iovs;
-	size_t remaining = accel_task->nbytes;
-	uint32_t s = 0, d = 0;
+	size_t remaining;
+	uint32_t i, s = 0, d = 0;
 	int rc = 0;
 
-	accel_task->d.iovcnt = 1;
-	diov[0].iov_base = accel_task->dst;
-	diov[0].iov_len = accel_task->nbytes_dst;
+	remaining = 0;
+	for (i = 0; i < accel_task->s.iovcnt; ++i) {
+		remaining += accel_task->s.iovs[i].iov_len;
+	}
 
 	isal_deflate_reset(&sw_ch->stream);
 	sw_ch->stream.end_of_stream = 0;
diff --git a/module/accel/iaa/accel_iaa.c b/module/accel/iaa/accel_iaa.c
index 1aabac22c..190c536ea 100644
--- a/module/accel/iaa/accel_iaa.c
+++ b/module/accel/iaa/accel_iaa.c
@@ -137,8 +137,9 @@ _process_single_task(struct spdk_io_channel *ch, struct spdk_accel_task *task)
 
 	switch (task->op_code) {
 	case ACCEL_OPC_COMPRESS:
-		rc = spdk_idxd_submit_compress(chan->chan, task->dst, task->nbytes_dst, task->s.iovs,
-					       task->s.iovcnt, task->output_size, flags, iaa_done, idxd_task);
+		rc = spdk_idxd_submit_compress(chan->chan, task->d.iovs[0].iov_base, task->d.iovs[0].iov_len,
+					       task->s.iovs, task->s.iovcnt, task->output_size, flags,
+					       iaa_done, idxd_task);
 		break;
 	case ACCEL_OPC_DECOMPRESS:
 		rc = spdk_idxd_submit_decompress(chan->chan, task->d.iovs, task->d.iovcnt, task->s.iovs,
diff --git a/test/unit/lib/accel/accel.c/accel_ut.c b/test/unit/lib/accel/accel.c/accel_ut.c
index 330d0a3d8..8f8bebef7 100644
--- a/test/unit/lib/accel/accel.c/accel_ut.c
+++ b/test/unit/lib/accel/accel.c/accel_ut.c
@@ -395,7 +395,6 @@ test_spdk_accel_submit_crc32cv(void)
 		iov[i].iov_len = TEST_SUBMIT_SIZE;
 	}
 
-	task.nbytes = TEST_SUBMIT_SIZE;
 	TAILQ_INSERT_TAIL(&g_accel_ch->task_pool, &task, link);
 
 	/* accel submission OK. */
@@ -407,7 +406,6 @@ test_spdk_accel_submit_crc32cv(void)
 	CU_ASSERT(task.seed == seed);
 	CU_ASSERT(task.op_code == ACCEL_OPC_CRC32C);
 	CU_ASSERT(task.cb_arg == cb_arg);
-	CU_ASSERT(task.nbytes == iov[0].iov_len);
 	expected_accel_task = TAILQ_FIRST(&g_sw_ch->tasks_to_complete);
 	TAILQ_REMOVE(&g_sw_ch->tasks_to_complete, expected_accel_task, link);
 	CU_ASSERT(expected_accel_task == &task);