diff --git a/modules/reitit-schema/src/reitit/ring/schema.cljc b/modules/reitit-schema/src/reitit/ring/schema.cljc
index 094b23b4..c4f400ab 100644
--- a/modules/reitit-schema/src/reitit/ring/schema.cljc
+++ b/modules/reitit-schema/src/reitit/ring/schema.cljc
@@ -8,7 +8,7 @@
   (spec [_]
     (s/spec m))
   (explain [_]
-    (cons 'file m))
+    (list 'file m))
 
   swagger/SwaggerSchema
   (-transform [_ _]