diff --git a/grammars/latex-beamer.cson b/grammars/latex-beamer.cson
index b16c267..1189e90 100644
--- a/grammars/latex-beamer.cson
+++ b/grammars/latex-beamer.cson
@@ -1,6 +1,8 @@
 'scopeName': 'text.tex.latex.beamer'
 'name': 'LaTeX Beamer'
-'fileTypes': []
+'fileTypes': [
+  'tex'
+]
 'firstLineMatch': '^\\\\documentclass(\\[.*\\])?\\{beamer\\}'
 'patterns': [
   {
diff --git a/grammars/latex-memoir.cson b/grammars/latex-memoir.cson
index ea82460..fd84055 100644
--- a/grammars/latex-memoir.cson
+++ b/grammars/latex-memoir.cson
@@ -1,6 +1,8 @@
 'scopeName': 'text.tex.latex.memoir'
 'name': 'LaTeX Memoir'
-'fileTypes': []
+'fileTypes': [
+  'tex'
+]
 'firstLineMatch': '^\\\\documentclass(\\[.*\\])?\\{memoir\\}'
 'patterns': [
   {