diff --git a/modules/reitit-core/src/reitit/exception.cljc b/modules/reitit-core/src/reitit/exception.cljc
index df61b66a..2ac4383d 100644
--- a/modules/reitit-core/src/reitit/exception.cljc
+++ b/modules/reitit-core/src/reitit/exception.cljc
@@ -7,6 +7,10 @@
   ([type data]
    (throw (ex-info (str type) {:type type, :data data}))))
 
+(defn unsupported-protocol-method!
+  [method]
+  (fail! :unsupported-protocol-method {:method method}))
+
 (defn get-message [e]
   #?(:clj (.getMessage ^Exception e) :cljs (ex-message e)))
 
diff --git a/modules/reitit-pedestal/src/reitit/pedestal.clj b/modules/reitit-pedestal/src/reitit/pedestal.clj
index c71f8873..b98345f5 100644
--- a/modules/reitit-pedestal/src/reitit/pedestal.clj
+++ b/modules/reitit-pedestal/src/reitit/pedestal.clj
@@ -2,6 +2,7 @@
   (:require [io.pedestal.http :as http]
             [io.pedestal.interceptor :as interceptor]
             [io.pedestal.interceptor.chain :as chain]
+            [reitit.exception :as ex]
             [reitit.http]
             [reitit.interceptor])
   (:import (java.lang.reflect Method)))
@@ -51,6 +52,10 @@
            (map (fn [{::interceptor/keys [handler] :as interceptor}]
                   (or handler interceptor)))
            (keep ->interceptor)))
+    (execute [_ _ _]
+      (ex/unsupported-protocol-method! 'reitit.interceptor/execute))
+    (execute [_ _ _ _ _]
+      (ex/unsupported-protocol-method! 'reitit.interceptor/execute))
     (enqueue [_ context interceptors]
       (chain/enqueue context interceptors))))
 
diff --git a/modules/reitit-sieppari/src/reitit/interceptor/sieppari.clj b/modules/reitit-sieppari/src/reitit/interceptor/sieppari.clj
index 1fa4e242..f8725037 100644
--- a/modules/reitit-sieppari/src/reitit/interceptor/sieppari.clj
+++ b/modules/reitit-sieppari/src/reitit/interceptor/sieppari.clj
@@ -1,5 +1,6 @@
 (ns reitit.interceptor.sieppari
-  (:require [reitit.interceptor :as interceptor]
+  (:require [reitit.exception :as ex]
+            [reitit.interceptor :as interceptor]
             [sieppari.core :as sieppari]
             [sieppari.queue :as queue]))
 
@@ -15,4 +16,6 @@
     (execute [_ interceptors request]
       (sieppari/execute interceptors request))
     (execute [_ interceptors request respond raise]
-      (sieppari/execute interceptors request respond raise))))
+      (sieppari/execute interceptors request respond raise))
+    (enqueue [_ _ _]
+      (ex/unsupported-protocol-method! 'reitit.interceptor/enqueue))))