diff --git a/src/monger/conversion.clj b/src/monger/conversion.clj
index d5176d0..25bee8b 100644
--- a/src/monger/conversion.clj
+++ b/src/monger/conversion.clj
@@ -23,7 +23,7 @@
 
 (ns monger.conversion
   (:import [com.mongodb DBObject BasicDBObject BasicDBList DBCursor]
-           [clojure.lang IPersistentMap Keyword Ratio]
+           [clojure.lang IPersistentMap Named Ratio]
            [java.util List Map Date]
            org.bson.types.ObjectId))
 
@@ -43,8 +43,8 @@
   (to-db-object [^Ratio input]
     (double input))
 
-  Keyword
-  (to-db-object [^Keyword input] (.getName input))
+  Named
+  (to-db-object [^Named input] (.getName input))
 
   IPersistentMap
   (to-db-object [^IPersistentMap input]