diff --git a/taichi/ir/type_factory.cpp b/taichi/ir/type_factory.cpp
index 40882dea5ccb4..86173fa0994ac 100644
--- a/taichi/ir/type_factory.cpp
+++ b/taichi/ir/type_factory.cpp
@@ -12,7 +12,6 @@ TypeFactory &TypeFactory::get_instance() {
 TypeFactory::TypeFactory() {
 }
 
-
 Type *TypeFactory::get_primitive_type(PrimitiveTypeID id) {
   std::lock_guard<std::mutex> _(primitive_mut_);