diff --git a/src/DynamoCoreWpf/Utilities/CerDLL.cs b/src/DynamoCoreWpf/Utilities/CerDLL.cs
index c0302e0dd65..3040de77c76 100644
--- a/src/DynamoCoreWpf/Utilities/CerDLL.cs
+++ b/src/DynamoCoreWpf/Utilities/CerDLL.cs
@@ -33,6 +33,7 @@ public void Dispose()
                 DLL.FreeLibrary(m_dll);
                 m_dll = IntPtr.Zero;
             }
+            Initialized = false;
         }
 
         private static bool Initialized;