diff --git a/rpcs3/Emu/Cell/lv2/sys_spu.cpp b/rpcs3/Emu/Cell/lv2/sys_spu.cpp
index 9e2cd527d2..6c1c8de3bc 100644
--- a/rpcs3/Emu/Cell/lv2/sys_spu.cpp
+++ b/rpcs3/Emu/Cell/lv2/sys_spu.cpp
@@ -1485,7 +1485,7 @@ error_code sys_spu_thread_group_join(ppu_thread& ppu, u32 id, vm::ptr<u32> cause
 			{
 				std::lock_guard lock(group->mutex);
 
-				if (!group->waiter)
+				if (group->waiter != &ppu)
 				{
 					break;
 				}