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diff --git a/glm/ext/vector_double4_precision.hpp b/glm/ext/vector_double4_precision.hpp
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+++ b/glm/ext/vector_double4_precision.hpp
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+/// @ref core
+/// @file glm/ext/vector_double4_precision.hpp
+
+#pragma once
+#include "../detail/setup.hpp"
+#include "../detail/type_vec4.hpp"
+
+namespace glm
+{
+	/// @addtogroup core_vector_precision
+	/// @{
+
+	/// 4 components vector of high double-qualifier floating-point numbers.
+	/// There is no guarantee on the actual qualifier.
+	///
+	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
+	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
+	typedef vec<4, double, highp>		highp_dvec4;
+
+	/// 4 components vector of medium double-qualifier floating-point numbers.
+	/// There is no guarantee on the actual qualifier.
+	///
+	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
+	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
+	typedef vec<4, double, mediump>		mediump_dvec4;
+
+	/// 4 components vector of low double-qualifier floating-point numbers.
+	/// There is no guarantee on the actual qualifier.
+	///
+	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.5 Vectors</a>
+	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
+	typedef vec<4, double, lowp>		lowp_dvec4;
+
+	/// @}
+}//namespace glm