diff --git a/include/Nazara/Renderer/Shader.hpp b/include/Nazara/Renderer/Shader.hpp
index 4b9e56454..c019a1dd0 100644
--- a/include/Nazara/Renderer/Shader.hpp
+++ b/include/Nazara/Renderer/Shader.hpp
@@ -43,6 +43,7 @@ class NAZARA_API NzShader : public NzResource, NzNonCopyable
 
 		bool IsCompiled() const;
 		bool IsLoaded(nzShaderType type) const;
+		bool IsValid() const;
 
 		bool Load(nzShaderType type, const NzString& source);
 		bool LoadFromFile(nzShaderType type, const NzString& source);
diff --git a/src/Nazara/Renderer/Shader.cpp b/src/Nazara/Renderer/Shader.cpp
index 5ef569b75..bb4d63ebb 100644
--- a/src/Nazara/Renderer/Shader.cpp
+++ b/src/Nazara/Renderer/Shader.cpp
@@ -214,6 +214,11 @@ bool NzShader::IsLoaded(nzShaderType type) const
 	return m_impl->IsLoaded(type);
 }
 
+bool NzShader::IsValid() const
+{
+	return m_impl != nullptr;
+}
+
 bool NzShader::Load(nzShaderType type, const NzString& source)
 {
 	#if NAZARA_RENDERER_SAFE