diff --git a/fuzzers/wcet_qemu_sys/src/system_trace.rs b/fuzzers/wcet_qemu_sys/src/system_trace.rs
index cd7b2106cf..8b0c4860c8 100644
--- a/fuzzers/wcet_qemu_sys/src/system_trace.rs
+++ b/fuzzers/wcet_qemu_sys/src/system_trace.rs
@@ -101,6 +101,7 @@ where
         let target : u32= (std::mem::size_of::<freertos::List_t>()*i).try_into().unwrap();
         let ready_list : freertos::List_t = freertos::emu_lookup::lookup(emulator, h.ready_queues+target);
         let a : freertos::rtos_struct = List_struct(ready_list);
+        result_tup.1.insert(target,a);
         // println!("{:?}",ready_list);
         // println!("Prio: {} Number: {} first {:x}",i,ready_list.uxNumberOfItems, ready_list.pxIndex);
     }