diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index b186dffa..8fa460a8 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -417,6 +417,7 @@ Forth:
   type: programming
   primary_extension: .fth
   color: "#341708"
+  lexer: Text only
   extensions:
   - .fth
   - .forth
@@ -857,6 +858,7 @@ Omgrofl:
   type: programming
   primary_extension: .omgrofl
   color: "#cabbff"
+  lexer: Text only
   extensions:
   - .omgrofl