diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 7ade41ec..c5be342c 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -723,6 +723,7 @@ Ruby:
 
 Rust:
   type: programming
+  lexer: Text only
   extensions:
   - .rs
   - .rc