--- a/include/common/mars/mars_workload_types.h
+++ b/include/common/mars/mars_workload_types.h
@@ -85,8 +85,6 @@ struct mars_workload_context {
 
 /* 128 byte workload queue header structure */
 struct mars_workload_queue_header {
-	uint32_t lock;
-	uint32_t pad;
 	uint64_t queue_ea;
 	uint64_t context_ea;
 	uint8_t flag;