diff --git a/native/dns/src/resolver_windows.cpp b/native/dns/src/resolver_windows.cpp
index 728e1db..9d03585 100644
--- a/native/dns/src/resolver_windows.cpp
+++ b/native/dns/src/resolver_windows.cpp
@@ -103,6 +103,8 @@ void Resolver::destroy_dns_request(Resolver::dns_request *request) {
             request->thread_data = nullptr;
         } else {
             //Threaded data has been deleted now delete the lock
+            lock.unlock();
+            
             delete request->threaded_lock;
             request->threaded_lock = nullptr;
         }