diff --git a/glm/gtx/rotate_vector.hpp b/glm/gtx/rotate_vector.hpp
index a1f1ffe9..6297b234 100644
--- a/glm/gtx/rotate_vector.hpp
+++ b/glm/gtx/rotate_vector.hpp
@@ -87,7 +87,7 @@ namespace glm
 		vec<3, T, P> const & v,
 		T const & angle);
 		
-	//! Rotate a four dimentionnals vector around the X axis.
+	//! Rotate a four dimensional vector around the X axis.
 	//! From GLM_GTX_rotate_vector extension.
 	template<typename T, precision P>
 	GLM_FUNC_DECL vec<4, T, P> rotateX(