diff --git a/src/cpu/o3/cpu.cc b/src/cpu/o3/cpu.cc
index 349434c94..b407f4fcc 100644
--- a/src/cpu/o3/cpu.cc
+++ b/src/cpu/o3/cpu.cc
@@ -577,7 +577,7 @@ void
 FullO3CPU<Impl>::suspendContext(int tid)
 {
     DPRINTF(O3CPU,"[tid: %i]: Suspending Thread Context.\n", tid);
-    deactivateThread();
+    deactivateThread(tid);
     if (activeThreads.size() == 0)
         unscheduleTickEvent();
     _status = Idle;