diff --git a/src/post_code.cpp b/src/post_code.cpp
index 1fcbe55..b1ffab8 100644
--- a/src/post_code.cpp
+++ b/src/post_code.cpp
@@ -17,16 +17,14 @@
 
 #include "iomanip"
 
-PostCodeDataHolder* PostCodeDataHolder::instance = 0;
-
 void PostCode::deleteAll()
 {
-    auto dir = fs::path(postcodeDataHolderObj->PostCodeListPathPrefix +
-                        std::to_string(postcodeDataHolderObj->node));
+    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 "
-              << postcodeDataHolderObj->PostCodeListPathPrefix +
-                     std::to_string(postcodeDataHolderObj->node)
+              << postcodeDataHolderObj.PostCodeListPathPrefix +
+                     std::to_string(postcodeDataHolderObj.node)
               << std::endl;
     fs::create_directories(dir);
     postCodes.clear();