|  | @@ -581,6 +581,7 @@ NAN_METHOD(Call::StartBatch) {
 | 
	
		
			
				|  |  |      uint32_t type = keys->Get(i)->Uint32Value();
 | 
	
		
			
				|  |  |      ops[i].op = static_cast<grpc_op_type>(type);
 | 
	
		
			
				|  |  |      ops[i].flags = 0;
 | 
	
		
			
				|  |  | +    ops[i].reserved = NULL;
 | 
	
		
			
				|  |  |      switch (type) {
 | 
	
		
			
				|  |  |        case GRPC_OP_SEND_INITIAL_METADATA:
 | 
	
		
			
				|  |  |          op.reset(new SendMetadataOp());
 |