diff --git a/lib/iscsi-command.c b/lib/iscsi-command.c
index a4df637..9a240ab 100644
--- a/lib/iscsi-command.c
+++ b/lib/iscsi-command.c
@@ -131,6 +131,7 @@ iscsi_send_data_out(struct iscsi_context *iscsi, struct iscsi_pdu *cmd_pdu,
 		if (iscsi_queue_pdu(iscsi, pdu) != 0) {
 			iscsi_set_error(iscsi, "Out-of-memory: failed to queue iscsi "
 				"scsi pdu.");
+			iscsi->drv->free_pdu(iscsi, pdu);
 			goto error;
 		}