diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index ac6e4589..a3f417a3 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -694,6 +694,7 @@ Objective-J:
 
 Opa:
   type: programming
+  lexer: Text only
   extensions:
   - .opa