diff --git a/KREngine/KREngine/Classes/KRScene.h b/KREngine/KREngine/Classes/KRScene.h
index 77a571f..2cf882d 100644
--- a/KREngine/KREngine/Classes/KRScene.h
+++ b/KREngine/KREngine/Classes/KRScene.h
@@ -51,7 +51,7 @@ using std::vector;
 class KRScene : public KRResource {
 public:
     KRScene(KRContext &context, std::string name);
-    ~KRScene();
+    virtual ~KRScene();
     
     virtual std::string getExtension();
     virtual bool save(const std::string& path);
diff --git a/KREngine/KREngine/Classes/KRShaderManager.h b/KREngine/KREngine/Classes/KRShaderManager.h
index d9f3653..23435ab 100644
--- a/KREngine/KREngine/Classes/KRShaderManager.h
+++ b/KREngine/KREngine/Classes/KRShaderManager.h
@@ -48,7 +48,7 @@ using std::vector;
 class KRShaderManager : public KRContextObject {
 public:
     KRShaderManager(KRContext &context);
-    ~KRShaderManager();
+    virtual ~KRShaderManager();
     
     void loadFragmentShader(const std::string &name, const std::string &path);
     void loadVertexShader(const std::string &name, const std::string &path);