diff --git a/src/main/java/com/github/markusbernhardt/proxy/jna/win/WTypes2.java b/src/main/java/com/github/markusbernhardt/proxy/jna/win/WTypes2.java
index b9ae5e4..87cdd29 100644
--- a/src/main/java/com/github/markusbernhardt/proxy/jna/win/WTypes2.java
+++ b/src/main/java/com/github/markusbernhardt/proxy/jna/win/WTypes2.java
@@ -40,6 +40,8 @@ public static class LPWSTRByReference extends ByReference {
 
         public LPWSTRByReference() {
             super(Pointer.SIZE);
+			// memory cleanup
+			getPointer().setPointer(0, null);
         }
 
         /**