diff --git a/src/xenia/kernel/objects/xthread.cc b/src/xenia/kernel/objects/xthread.cc
index cfb224402..cd0e431a6 100644
--- a/src/xenia/kernel/objects/xthread.cc
+++ b/src/xenia/kernel/objects/xthread.cc
@@ -484,7 +484,7 @@ void XThread::SetAffinity(uint32_t affinity) {
   if (system_info.dwNumberOfProcessors < 6) {
     XELOGW("Too few processors - scheduling will be wonky");
   }
-  SetThreadAffinityMask(::GetCurrentThread(), affinity);
+  SetThreadAffinityMask(reinterpret_cast<HANDLE>(thread_handle_), affinity);
 }
 
 X_STATUS XThread::Resume(uint32_t* out_suspend_count) {