diff --git a/src/clj/pmagnus/btcdata/web/middleware/core.clj b/src/clj/pmagnus/btcdata/web/middleware/core.clj
index dbde6bb..545eb02 100644
--- a/src/clj/pmagnus/btcdata/web/middleware/core.clj
+++ b/src/clj/pmagnus/btcdata/web/middleware/core.clj
@@ -16,6 +16,14 @@
         (update resp :headers assoc
                 "Access-Control-Allow-Origin" origin)))))
 
+(defn- wrap-nil-guard
+  "Discard responses with no :status — these are artifacts of ring-defaults
+   middleware wrapping a nil response (e.g., from a raw WebSocket upgrade)."
+  [handler]
+  (fn [request]
+    (let [resp (handler request)]
+      (when (:status resp) resp))))
+
 (defn wrap-base [{:keys [site-defaults-config cors-origin]}]
   (let [origin (or cors-origin
                    (System/getenv "CORS_ORIGIN")
@@ -24,4 +32,5 @@
       (-> handler
           (defaults/wrap-defaults
            (or site-defaults-config defaults/api-defaults))
+          (wrap-nil-guard)
           (wrap-cors origin)))))