diff --git a/core/src/scheduler/SchedInst.h b/core/src/scheduler/SchedInst.h
index 912f5edf8d..dc2d5ade35 100644
--- a/core/src/scheduler/SchedInst.h
+++ b/core/src/scheduler/SchedInst.h
@@ -23,11 +23,11 @@
 #include "Scheduler.h"
 #include "Utils.h"
 #include "optimizer/BuildIndexPass.h"
-#include "optimizer/FallbackPass.h"
 #include "optimizer/FaissFlatPass.h"
 #include "optimizer/FaissIVFFlatPass.h"
-#include "optimizer/FaissIVFSQ8Pass.h"
 #include "optimizer/FaissIVFSQ8HPass.h"
+#include "optimizer/FaissIVFSQ8Pass.h"
+#include "optimizer/FallbackPass.h"
 #include "optimizer/Optimizer.h"
 #include "server/Config.h"