diff --git a/image/bmp.h b/image/bmp.h
index 206b3ab4153..ba756d7d919 100644
--- a/image/bmp.h
+++ b/image/bmp.h
@@ -72,8 +72,8 @@ public:
 	virtual ~BitmapDecoder();
 
 	// ImageDecoder API
-	void destroy();
-	virtual bool loadStream(Common::SeekableReadStream &stream);
+	void destroy() override;
+	virtual bool loadStream(Common::SeekableReadStream &stream) override;
 	const Graphics::Surface *getSurface() const override { return _surface; }
 	const Graphics::Palette &getPalette() const override { return _palette; }
 
diff --git a/image/pict.h b/image/pict.h
index 8f4c95c1b05..97f1c649bca 100644
--- a/image/pict.h
+++ b/image/pict.h
@@ -60,8 +60,8 @@ public:
 	~PICTDecoder();
 
 	// ImageDecoder API
-	bool loadStream(Common::SeekableReadStream &stream);
-	void destroy();
+	bool loadStream(Common::SeekableReadStream &stream) override;
+	void destroy() override;
 	const Graphics::Surface *getSurface() const override { return _outputSurface; }
 	const Graphics::Palette &getPalette() const override { return _palette; }