diff --git a/glm/gtx/rotate_vector.hpp b/glm/gtx/rotate_vector.hpp
index 6297b234..3f076d94 100644
--- a/glm/gtx/rotate_vector.hpp
+++ b/glm/gtx/rotate_vector.hpp
@@ -94,14 +94,14 @@ namespace glm
 		vec<4, T, P> const & v,
 		T const & angle);
 		
-	//! Rotate a four dimensional vector around the X axis.
+	//! Rotate a four dimensional vector around the Y axis.
 	//! From GLM_GTX_rotate_vector extension.
 	template<typename T, precision P>
 	GLM_FUNC_DECL vec<4, T, P> rotateY(
 		vec<4, T, P> const & v,
 		T const & angle);
 		
-	//! Rotate a four dimensional vector around the X axis.
+	//! Rotate a four dimensional vector around the Z axis.
 	//! From GLM_GTX_rotate_vector extension.
 	template<typename T, precision P>
 	GLM_FUNC_DECL vec<4, T, P> rotateZ(