diff --git a/taichi/analysis/gen_offline_cache_key.cpp b/taichi/analysis/gen_offline_cache_key.cpp
index bd0a1f1a36fb0..592908f6f239f 100644
--- a/taichi/analysis/gen_offline_cache_key.cpp
+++ b/taichi/analysis/gen_offline_cache_key.cpp
@@ -446,10 +446,10 @@ class ASTSerializer : public IRVisitor, public ExpressionVisitor {
     emit(static_cast<std::size_t>(snode_tree_roots_.size()));
     for (const auto *snode : snode_tree_roots_) {
       std::string key;
-      if(snode_key_cache_.find(snode) == snode_key_cache_.end()){
+      if (snode_key_cache_.find(snode) == snode_key_cache_.end()) {
         key = get_hashed_offline_cache_key_of_snode(snode);
         snode_key_cache_[snode] = key;
-      }else{
+      } else {
         key = snode_key_cache_[snode];
       }
       snode_key_cache_[snode] = key;
diff --git a/taichi/analysis/offline_cache_util.cpp b/taichi/analysis/offline_cache_util.cpp
index 66f51121ea392..2ea4d0df979da 100644
--- a/taichi/analysis/offline_cache_util.cpp
+++ b/taichi/analysis/offline_cache_util.cpp
@@ -155,7 +155,7 @@ std::string get_hashed_offline_cache_key_of_snode(const SNode *snode) {
   BinaryOutputSerializer serializer;
   serializer.initialize();
   {
-    std::unordered_set<int> visited;    
+    std::unordered_set<int> visited;
     get_offline_cache_key_of_snode_impl(snode, serializer, visited);
   }
   serializer.finalize();