1 files changed, 2 insertions, 1 deletions
diff --git a/core/core_bind.h b/core/core_bind.h
index 7f945a9314..46a7a94f2d 100644
--- a/core/core_bind.h
+++ b/core/core_bind.h
@@ -40,6 +40,7 @@
 #include "core/os/os.h"
 #include "core/os/semaphore.h"
 #include "core/os/thread.h"
+#include "core/templates/safe_refcount.h"
 
 class _ResourceLoader : public Object {
 	GDCLASS(_ResourceLoader, Object);
@@ -559,7 +560,7 @@ class _Thread : public Reference {
 protected:
 	Variant ret;
 	Variant userdata;
-	volatile bool active = false;
+	SafeFlag active;
 	Object *target_instance = nullptr;
 	StringName target_method;
 	Thread thread;