diff --git a/libs/gfx/include/psemek/gfx/attribs.hpp b/libs/gfx/include/psemek/gfx/attribs.hpp
index 2b4e2210..895cc3e3 100644
--- a/libs/gfx/include/psemek/gfx/attribs.hpp
+++ b/libs/gfx/include/psemek/gfx/attribs.hpp
@@ -5,6 +5,7 @@
 #include <psemek/geom/vector.hpp>
 #include <psemek/geom/point.hpp>
 #include <psemek/geom/matrix.hpp>
+#include <psemek/geom/quaternion.hpp>
 
 #include <vector>
 #include <optional>
@@ -202,6 +203,16 @@ namespace psemek::gfx
 			using attrib_type = geom::matrix<T, R, C>;
 		};
 
+		template <typename T>
+		struct attrib_traits<geom::quaternion<T>>
+		{
+			using attrib_type = geom::quaternion<T>;
+
+			static constexpr GLint size = 4;
+			static constexpr GLenum type = attrib_traits<T>::type;
+			static constexpr GLboolean normalized = gl::FALSE;
+		};
+
 		template <typename T>
 		struct attrib_traits<normalized<T>>
 		{