diff --git a/JSON/JSON.sublime-syntax b/JSON/JSON.sublime-syntax
index b7bd6a312d..2ff4218e34 100644
--- a/JSON/JSON.sublime-syntax
+++ b/JSON/JSON.sublime-syntax
@@ -20,6 +20,7 @@ file_extensions:
   - sublime-workspace
   - ipynb
   - Pipfile.lock
+  - gltf
 
 first_line_match: |-
   (?xi: