diff --git a/config.json b/config.json
index 1177083ac800006377b47e1a0cec1a63a47eacd5..7498361944c4372139e3c7f763464f46217d8a86 100644
--- a/config.json
+++ b/config.json
@@ -85,6 +85,9 @@
 					"-tex_math_double_backslash"
 				]
 			},
+			"text/x-tex": {
+				"base": "latex"
+			},
 			"application/x-tex": {
 				"base": "latex"
 			}