diff --git a/languages/cpp/templates/sdk/src/firebolt.cpp b/languages/cpp/templates/sdk/src/firebolt.cpp
index 4f9e15ff..3e08b480 100644
--- a/languages/cpp/templates/sdk/src/firebolt.cpp
+++ b/languages/cpp/templates/sdk/src/firebolt.cpp
@@ -69,7 +69,7 @@ namespace Firebolt {
             ASSERT(_singleton != nullptr);
             if (_singleton != nullptr) {
                 delete _singleton;
-                singleton = nullptr;
+                _singleton = nullptr;
             }
         }