[#4196] fixed memory leak

diff --git a/src/bin/d2/d2_controller.cc b/src/bin/d2/d2_controller.cc
index 244f349b06e9f1111e5b1e0f11f29e9e6f502dc6..f89018302262b0b299b1defd07ed837271d82a96 100644 (file)
--- a/src/bin/d2/d2_controller.cc
+++ b/src/bin/d2/d2_controller.cc
@@ -145,6 +145,7 @@ D2Controller::parseFile(const std::string& file_name) {
 }
 
 D2Controller::~D2Controller() {
+    deregisterCommands();
 }
 
 } // end namespace isc::d2