diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index c18e9575..a06609b2 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -341,6 +341,7 @@ Dart:
 
 Datomic:
   type: data
+  lexer: clojure
   ace_mode: clojure
   color: "#db5855"
   primary_extension: .dtm