diff --git a/grammars/mathematica.cson b/grammars/mathematica.cson
index 6c7dee8..426e163 100644
--- a/grammars/mathematica.cson
+++ b/grammars/mathematica.cson
@@ -4,6 +4,8 @@
   'm'
   'wl'
   'wls'
+  'mt'
+  'wlt'
 ]
 'patterns': [
   {