diff --git a/glm/core/type_mat2x2.hpp b/glm/core/type_mat2x2.hpp
index 23781135..5c1d4c3c 100644
--- a/glm/core/type_mat2x2.hpp
+++ b/glm/core/type_mat2x2.hpp
@@ -66,8 +66,10 @@ namespace detail
 		typedef tmat2x2<T> transpose_type;
 
 	public:
-		// Implementation detail
+		/// Implementation detail
+        /// @cond DETAIL
 		GLM_FUNC_DECL tmat2x2<T> _inverse() const;
+        /// @endcond
 
 	private:
 		//////////////////////////////////////
diff --git a/glm/core/type_mat3x3.hpp b/glm/core/type_mat3x3.hpp
index bd4d5529..e31ab27f 100644
--- a/glm/core/type_mat3x3.hpp
+++ b/glm/core/type_mat3x3.hpp
@@ -48,8 +48,8 @@ namespace detail
 	template <typename T> struct tmat4x3;
 	template <typename T> struct tmat4x4;
 
-	//! \brief Template for 3 * 3 matrix of floating-point numbers.
-	//! \ingroup core_template
+	//! @brief Template for 3 * 3 matrix of floating-point numbers.
+	//! @ingroup core_template
 	template <typename T> 
 	struct tmat3x3
 	{
@@ -66,9 +66,11 @@ namespace detail
 		typedef tmat3x3<T> transpose_type;
 
 	public:
-		// Implementation detail
+		/// Implementation detail
+        /// @cond DETAIL
 		GLM_FUNC_DECL tmat3x3<T> _inverse() const;
-
+        /// @endcond
+        
 	private:
 		// Data
 		col_type value[3];
diff --git a/glm/core/type_mat4x4.hpp b/glm/core/type_mat4x4.hpp
index b0ebb39a..df0392c8 100644
--- a/glm/core/type_mat4x4.hpp
+++ b/glm/core/type_mat4x4.hpp
@@ -66,8 +66,10 @@ namespace detail
 		typedef tmat4x4<T> transpose_type;
 
 	public:
-		// Implementation detail
+		/// Implementation detail
+        /// @cond DETAIL
 		GLM_FUNC_DECL tmat4x4<T> _inverse() const;
+        /// @endcond
 
 	private:
 		// Data