diff --git a/src/threading/thread.cpp b/src/threading/thread.cpp
index 5cfc60995..ef025ac1d 100644
--- a/src/threading/thread.cpp
+++ b/src/threading/thread.cpp
@@ -121,12 +121,12 @@ bool Thread::start()
 		return false;
 	}
 
-	// Allow spawned thread to continue
-	m_start_finished_mutex.unlock();
-
 	while (!m_running)
 		sleep_ms(1);
 
+	// Allow spawned thread to continue
+	m_start_finished_mutex.unlock();
+
 	m_joinable = true;
 
 	return true;