diff --git a/src/post_code.cpp b/src/post_code.cpp
index 67a9d8f..d0ba711 100644
--- a/src/post_code.cpp
+++ b/src/post_code.cpp
@@ -17,12 +17,17 @@
 
 #include "iomanip"
 
+PostCodeDataHolder* PostCodeDataHolder::instance = 0;
+
 void PostCode::deleteAll()
 {
-    auto dir = fs::path(PostCodeListPath);
+    auto dir = fs::path(postcodeDataHolderObj->PostCodeListPathPrefix +
+                        std::to_string(postcodeDataHolderObj->node));
     std::uintmax_t n = fs::remove_all(dir);
     std::cerr << "clearPostCodes deleted " << n << " files in "
-              << PostCodeListPath << std::endl;
+              << postcodeDataHolderObj->PostCodeListPathPrefix +
+                     std::to_string(postcodeDataHolderObj->node)
+              << std::endl;
     fs::create_directories(dir);
     postCodes.clear();
     currentBootCycleIndex = 1;
@@ -88,7 +93,7 @@
     }
 
     postCodes.insert(std::make_pair(tsUS, code));
-    serialize(fs::path(PostCodeListPath));
+    serialize(fs::path(strPostCodeListPath));
 
     return;
 }
@@ -207,4 +212,4 @@
         bootNum = currentBootCycleIndex - index + 1;
     }
     return bootNum;
-}
\ No newline at end of file
+}