diff --git a/src/OpenGL/compiler/OutputASM.h b/src/OpenGL/compiler/OutputASM.h
index dbfbec4..5cbf4dd 100644
--- a/src/OpenGL/compiler/OutputASM.h
+++ b/src/OpenGL/compiler/OutputASM.h
@@ -89,6 +89,7 @@
 	{
 		friend class OutputASM;
 	public:
+		virtual ~Shader() {};
 		virtual sw::Shader *getShader() const = 0;
 		virtual sw::PixelShader *getPixelShader() const;
 		virtual sw::VertexShader *getVertexShader() const;
diff --git a/src/OpenGL/libEGL/Context.hpp b/src/OpenGL/libEGL/Context.hpp
index b4a811b..01078b4 100644
--- a/src/OpenGL/libEGL/Context.hpp
+++ b/src/OpenGL/libEGL/Context.hpp
@@ -14,6 +14,7 @@
 class Context
 {
 public:
+	virtual ~Context() {};
 	virtual void destroy() = 0;
 	virtual void makeCurrent(Surface *surface) = 0;
 	virtual void bindTexImage(Surface *surface) = 0;
diff --git a/src/Shader/Shader.hpp b/src/Shader/Shader.hpp
index 870f701..898e96e 100644
--- a/src/Shader/Shader.hpp
+++ b/src/Shader/Shader.hpp
@@ -474,7 +474,7 @@
 
 		Shader();
 
-		~Shader();
+		virtual ~Shader();
 
 		int getSerialID() const;
 		size_t getLength() const;