diff --git a/.gitignore b/.gitignore
index 74dc77aaea..335ff629d3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -64,6 +64,7 @@ src/build_version.cc
 build/
 buildtrees
 deps
+pkg
 
 #develop container
 .devcontainer
diff --git a/src/storage/src/storage.cc b/src/storage/src/storage.cc
index 9fb252a7d0..f614556b83 100644
--- a/src/storage/src/storage.cc
+++ b/src/storage/src/storage.cc
@@ -2397,7 +2397,7 @@ Status Storage::EnableAutoCompaction(const OptionType& option_type,
 void Storage::GetRocksDBInfo(std::string& info) {
   char temp[12] = {0};
   for (const auto& inst : insts_) {
-    snprintf(temp, sizeof(temp), "instance:%2d", inst->GetIndex());
+    snprintf(temp, sizeof(temp), "instance%d_", inst->GetIndex());
     inst->GetRocksDBInfo(info, temp);
   }
 }