diff --git a/lib/mapObjects/CQuest.cpp b/lib/mapObjects/CQuest.cpp
index 645ae95f5..4290a9368 100644
--- a/lib/mapObjects/CQuest.cpp
+++ b/lib/mapObjects/CQuest.cpp
@@ -490,6 +490,17 @@ void CQuest::addReplacements(MetaString &out, const std::string &base) const
 	}
 }
 
+IQuestObject::IQuestObject():
+	quest(new CQuest())
+{
+
+}
+
+IQuestObject::~IQuestObject()
+{
+	delete quest;
+}
+
 bool IQuestObject::checkQuest(const CGHeroInstance* h) const
 {
 	return quest->checkQuest(h);
diff --git a/lib/mapObjects/CQuest.h b/lib/mapObjects/CQuest.h
index 1cfaf2ebc..0b83cb293 100644
--- a/lib/mapObjects/CQuest.h
+++ b/lib/mapObjects/CQuest.h
@@ -87,8 +87,8 @@ class DLL_LINKAGE IQuestObject
 public:
 	CQuest * quest;
 
-	IQuestObject(): quest(new CQuest()){};
-	virtual ~IQuestObject() {};
+	IQuestObject();
+	virtual ~IQuestObject();
 	virtual void getVisitText (MetaString &text, std::vector<Component> &components, bool isCustom, bool FirstVisit, const CGHeroInstance * h = nullptr) const;
 	virtual bool checkQuest (const CGHeroInstance * h) const;