diff --git a/Source/cryptalgo/SecureSocketPort.h b/Source/cryptalgo/SecureSocketPort.h
index 5fd037b40..6eeae6ded 100644
--- a/Source/cryptalgo/SecureSocketPort.h
+++ b/Source/cryptalgo/SecureSocketPort.h
@@ -107,6 +107,8 @@ namespace Crypto {
 
             // Signal a state change, Opened, Closed or Accepted
             void StateChange() override {
+                ASSERT(_context != nullptr && _ssl != nullptr);
+
                 Update();
             };
             inline uint32_t Callback(IValidator* callback) {