diff --git a/src/icons/fileIcons.ts b/src/icons/fileIcons.ts
index 812b4ab2cc..1759f41d8a 100644
--- a/src/icons/fileIcons.ts
+++ b/src/icons/fileIcons.ts
@@ -302,7 +302,7 @@ export const fileIcons: FileIcons = {
                 'docker-compose.test.yml'
             ]
         },
-        { name: 'tex', fileExtensions: ['tex', 'cls', 'sty'] },
+        { name: 'tex', fileExtensions: ['tex', 'cls', 'sty', 'dtx', 'ltx'] },
         {
             name: 'powerpoint',
             fileExtensions: [