diff --git a/glm/detail/type_mat2x2.hpp b/glm/detail/type_mat2x2.hpp
index 155f7d89..8175b777 100644
--- a/glm/detail/type_mat2x2.hpp
+++ b/glm/detail/type_mat2x2.hpp
@@ -148,6 +148,9 @@ namespace detail
 		GLM_FUNC_DECL tmat2x2<T, P> operator--(int);
 	};
 
+	template <typename T, precision P>
+	GLM_FUNC_DECL tmat2x2<T, P> compute_inverse_mat2(tmat2x2<T, P> const & m);
+
 	// Binary operators
 	template <typename T, precision P>
 	GLM_FUNC_DECL tmat2x2<T, P> operator+ (
diff --git a/glm/ext.hpp b/glm/ext.hpp
index 3095dd7f..86f77a3d 100644
--- a/glm/ext.hpp
+++ b/glm/ext.hpp
@@ -95,7 +95,6 @@
 #include "./gtx/gradient_paint.hpp"
 #include "./gtx/handed_coordinate_space.hpp"
 #include "./gtx/inertia.hpp"
-#include "./gtx/int_10_10_10_2.hpp"
 #include "./gtx/integer.hpp"
 #include "./gtx/intersect.hpp"
 #include "./gtx/log_base.hpp"