diff --git a/manual.md b/manual.md
index ac908342..db6a9f79 100644
--- a/manual.md
+++ b/manual.md
@@ -209,7 +209,7 @@ glm::mat4 transform(glm::vec2 const& Orientation, glm::vec3 const& Translate, gl
 
 The `<glm/glm.hpp>` header provides all standard GLSL features.
 
-GLM does not depend on external libraries or external headers such as `<gl.h>`, [`<glcorearb.h>`](http://www.opengl.org/registry/api/GL/glcorearb.h), `<gl3.h>`, `<glu.h>`, or `<windows.h>`. However, if `<boost/static_assert.hpp>` is included, then [`Boost.StaticAssert`](http://www.boost.org/doc/libs/release/libs/static_assert) will be used to provide compile-time errors.  Otherwise, if using a C++11 compiler, the standard `static_assert` will be used instead. If neither is available, GLM will use its own implementation of `static_assert`.
+GLM does not depend on external libraries or external headers such as `<GL/gl.h>`, [`<GL/glcorearb.h>`](http://www.opengl.org/registry/api/GL/glcorearb.h), `<GLES3/gl3.h>`, `<GL/glu.h>`, or `<windows.h>`. However, if `<boost/static_assert.hpp>` is included, then [`Boost.StaticAssert`](http://www.boost.org/doc/libs/release/libs/static_assert) will be used to provide compile-time errors.  Otherwise, if using a C++11 compiler, the standard `static_assert` will be used instead. If neither is available, GLM will use its own implementation of `static_assert`.
 
 ---
 ## <a name="section2"></a> 2. Swizzle operators