diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..787b137
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+# Ignore files generated by cmake
+CMakeCache.txt
+CMakeFiles/
+Makefile
+cmake_install.cmake
+libSDL2pp.so
diff --git a/SDL2pp/Exception.cc b/SDL2pp/Exception.cc
index 18cf4d4..b5d2cb0 100644
--- a/SDL2pp/Exception.cc
+++ b/SDL2pp/Exception.cc
@@ -28,6 +28,9 @@ namespace SDL2pp {
 Exception::Exception(const char* what) : what_(what), sdl_error_(SDL_GetError()) {
 }
 
+Exception::~Exception() noexcept {
+}
+
 const char* Exception::what() const noexcept {
 	return what_;
 }
diff --git a/SDL2pp/Exception.hh b/SDL2pp/Exception.hh
index 4f46890..d4ffc8e 100644
--- a/SDL2pp/Exception.hh
+++ b/SDL2pp/Exception.hh
@@ -33,6 +33,7 @@ private:
 
 public:
 	Exception(const char* what = "");
+	virtual ~Exception() noexcept;
 	const char* what() const noexcept;
 	const char* GetSDLError() const noexcept;
 };
diff --git a/SDL2pp/Point.hh b/SDL2pp/Point.hh
index 29b932c..eebce42 100644
--- a/SDL2pp/Point.hh
+++ b/SDL2pp/Point.hh
@@ -45,7 +45,7 @@ private:
 
 public:
 	Point(int x, int y);
-	~Point();
+	virtual ~Point();
 
 	static Point Null();
 
diff --git a/SDL2pp/Rect.hh b/SDL2pp/Rect.hh
index 262d719..2a28f25 100644
--- a/SDL2pp/Rect.hh
+++ b/SDL2pp/Rect.hh
@@ -37,7 +37,7 @@ private:
 
 public:
 	Rect(int x, int y, int w, int h);
-	~Rect();
+	virtual ~Rect();
 
 	static Rect Null();
 
diff --git a/SDL2pp/Renderer.cc b/SDL2pp/Renderer.cc
index c9612ad..312598b 100644
--- a/SDL2pp/Renderer.cc
+++ b/SDL2pp/Renderer.cc
@@ -170,7 +170,7 @@ void Renderer::DrawRects(const Rect* rects, int count) {
 
 void Renderer::FillRect(int x1, int y1, int x2, int y2) {
 	SDL_Rect rect = {x1, y1, x2 - x1 + 1, y2 - y1 + 1};
-	if (SDL_RenderDrawRect(renderer_, &rect) != 0)
+	if (SDL_RenderFillRect(renderer_, &rect) != 0)
 		throw Exception("SDL_RenderFillRect failed");
 }
 
@@ -183,7 +183,7 @@ void Renderer::FillRect(const Point& p1, const Point& p2) {
 void Renderer::FillRect(const Rect& r) {
 	if (r.IsNull())
 		return;
-	if (SDL_RenderDrawRect(renderer_, r.Get()) != 0)
+	if (SDL_RenderFillRect(renderer_, r.Get()) != 0)
 		throw Exception("SDL_RenderFillRect failed");
 }
 
diff --git a/SDL2pp/Renderer.hh b/SDL2pp/Renderer.hh
index 430caa2..ab4a8f8 100644
--- a/SDL2pp/Renderer.hh
+++ b/SDL2pp/Renderer.hh
@@ -42,7 +42,7 @@ private:
 
 public:
 	Renderer(Window& window, int index, Uint32 flags);
-	~Renderer();
+	virtual ~Renderer();
 
 	Renderer(const Renderer& other) = delete;
 	Renderer(Renderer&& other) = delete;
diff --git a/SDL2pp/SDL.hh b/SDL2pp/SDL.hh
index f923da8..cb5edb0 100644
--- a/SDL2pp/SDL.hh
+++ b/SDL2pp/SDL.hh
@@ -29,7 +29,7 @@ namespace SDL2pp {
 class SDL {
 public:
 	SDL(Uint32 flags);
-	~SDL();
+	virtual ~SDL();
 
 	SDL(const SDL& other) = delete;
 	SDL(SDL&& other) = delete;
diff --git a/SDL2pp/Texture.hh b/SDL2pp/Texture.hh
index af55895..905e036 100644
--- a/SDL2pp/Texture.hh
+++ b/SDL2pp/Texture.hh
@@ -38,7 +38,7 @@ private:
 
 public:
 	Texture(Renderer& renderer, Uint32 format, int access, int w, int h);
-	~Texture();
+	virtual ~Texture();
 
 	Texture(const Texture& other) = delete;
 	Texture(Texture&& other) = delete;
diff --git a/SDL2pp/Window.hh b/SDL2pp/Window.hh
index afda315..86ee456 100644
--- a/SDL2pp/Window.hh
+++ b/SDL2pp/Window.hh
@@ -34,7 +34,7 @@ private:
 
 public:
 	Window(const char* title, int x, int y, int w, int h, Uint32 flags);
-	~Window();
+	virtual ~Window();
 
 	Window(const Window& other) = delete;
 	Window(Window&& other) = delete;