diff --git a/to-edn.nix b/to-edn.nix
index 7f4a4e8..17b47d6 100644
--- a/to-edn.nix
+++ b/to-edn.nix
@@ -22,7 +22,7 @@ let
           (if isAttrs ds then
             "{ ${
               join-str
-              (mapAttrsToList (k: v: ":${parseKeyword k} ${toEDN v}") ds)
+              (mapAttrsToList (k: v: "${parseKeyword k} ${toEDN v}") ds)
             } }"
           else
             throw "unsupported type: ${builtins.typeOf ds}: ${ds}")));