diff --git a/libs/gfx/include/psemek/gfx/framebuffer.hpp b/libs/gfx/include/psemek/gfx/framebuffer.hpp
index e5797ffe..dbe8e357 100644
--- a/libs/gfx/include/psemek/gfx/framebuffer.hpp
+++ b/libs/gfx/include/psemek/gfx/framebuffer.hpp
@@ -17,7 +17,7 @@ namespace psemek::gfx
 		framebuffer(framebuffer const &) = delete;
 		framebuffer & operator = (framebuffer const &) = delete;
 
-		static framebuffer null();
+		static framebuffer const & null();
 
 		GLuint id() const { return id_; }
 
diff --git a/libs/gfx/source/framebuffer.cpp b/libs/gfx/source/framebuffer.cpp
index f95109d7..63c8569b 100644
--- a/libs/gfx/source/framebuffer.cpp
+++ b/libs/gfx/source/framebuffer.cpp
@@ -42,9 +42,10 @@ namespace psemek::gfx
 		reset();
 	}
 
-	framebuffer framebuffer::null()
+	framebuffer const & framebuffer::null()
 	{
-		return framebuffer(nullptr);
+		static framebuffer f(nullptr);
+		return f;
 	}
 
 	void framebuffer::bind() const