diff --git a/lldb/include/lldb/Target/Process.h b/lldb/include/lldb/Target/Process.h
index e0b36fd1eb35e..7a15adebc63ee 100644
--- a/lldb/include/lldb/Target/Process.h
+++ b/lldb/include/lldb/Target/Process.h
@@ -3213,7 +3213,9 @@ void PruneThreadPlans();
         bool is_secondary_thread, // FIXME: Can I get rid of this?
         llvm::StringRef thread_name)
         : m_process(process), m_public_state(public_state),
-          m_private_state(private_state), m_thread_name(thread_name) {}
+          m_private_state(private_state),
+          m_is_secondary_thread(is_secondary_thread),
+          m_thread_name(thread_name) {}
     // This returns false if we couldn't start up the thread.  If that happens,
     // you won't be doing any debugging today.
     bool StartupThread();
@@ -3544,7 +3546,7 @@ void PruneThreadPlans();
   // temporarily spin up a secondary state thread to handle events from a hand-
   // called function on the primary private state thread.
 
-  lldb::thread_result_t RunPrivateStateThread(bool is_secondary_thread);
+  lldb::thread_result_t RunPrivateStateThread();
 
 protected:
   void HandlePrivateEvent(lldb::EventSP &event_sp);
diff --git a/lldb/source/Target/Process.cpp b/lldb/source/Target/Process.cpp
index 1f79a2830bd7b..0cd46f2fc7408 100644
--- a/lldb/source/Target/Process.cpp
+++ b/lldb/source/Target/Process.cpp
@@ -3914,10 +3914,7 @@ bool Process::ShouldBroadcastEvent(Event *event_ptr) {
 bool Process::PrivateStateThread::StartupThread() {
   llvm::Expected<HostThread> private_state_thread =
       ThreadLauncher::LaunchThread(
-          m_thread_name,
-          [this] {
-            return m_process.RunPrivateStateThread(m_is_secondary_thread);
-          },
+          m_thread_name, [this] { return m_process.RunPrivateStateThread(); },
           8 * 1024 * 1024);
   if (!private_state_thread) {
     LLDB_LOG_ERROR(GetLog(LLDBLog::Host), private_state_thread.takeError(),
@@ -4196,7 +4193,7 @@ Status Process::HaltPrivate() {
   return error;
 }
 
-thread_result_t Process::RunPrivateStateThread(bool is_secondary_thread) {
+thread_result_t Process::RunPrivateStateThread() {
   bool control_only = true;
 
   Log *log = GetLog(LLDBLog::Process);