diff --git a/libraries/mtl b/libraries/mtl
index bf4af114ba3d35b2937fc74926aa49e128dd6c1f..c7d396732bd45e409478bd4df1d0ca95d6f39356 160000
--- a/libraries/mtl
+++ b/libraries/mtl
@@ -1 +1 @@
-Subproject commit bf4af114ba3d35b2937fc74926aa49e128dd6c1f
+Subproject commit c7d396732bd45e409478bd4df1d0ca95d6f39356