diff --git a/src/core/index.js b/src/core/index.js
index 381748d4..dbfee248 100644
--- a/src/core/index.js
+++ b/src/core/index.js
@@ -61,7 +61,8 @@ module.exports = function SwaggerUI(opts) {
     plugins: constructorConfig.presets,
     state: {
       layout: {
-        layout: constructorConfig.layout
+        layout: constructorConfig.layout,
+        filter: constructorConfig.filter
       },
       spec: {
         spec: "",
diff --git a/src/core/plugins/layout/actions.js b/src/core/plugins/layout/actions.js
index b8cba718..d65d34e3 100644
--- a/src/core/plugins/layout/actions.js
+++ b/src/core/plugins/layout/actions.js
@@ -1,6 +1,7 @@
 import { normalizeArray } from "core/utils"
 
 export const UPDATE_LAYOUT = "layout_update_layout"
+export const UPDATE_FILTER = "layout_update_filter"
 export const UPDATE_MODE = "layout_update_mode"
 export const SHOW = "layout_show"
 
@@ -13,6 +14,13 @@ export function updateLayout(layout) {
   }
 }
 
+export function updateFilter(filter) {
+  return {
+    type: UPDATE_FILTER,
+    payload: filter
+  }
+}
+
 export function show(thing, shown=true) {
   thing = normalizeArray(thing)
   return {
diff --git a/src/core/plugins/layout/reducers.js b/src/core/plugins/layout/reducers.js
index 44e3c480..4b561015 100644
--- a/src/core/plugins/layout/reducers.js
+++ b/src/core/plugins/layout/reducers.js
@@ -1,5 +1,6 @@
 import {
   UPDATE_LAYOUT,
+  UPDATE_FILTER,
   UPDATE_MODE,
   SHOW
 } from "./actions"
@@ -8,6 +9,8 @@ export default {
 
   [UPDATE_LAYOUT]: (state, action) => state.set("layout", action.payload),
 
+  [UPDATE_FILTER]: (state, action) => state.set("filter", action.payload),
+
   [SHOW]: (state, action) => {
     let thing = action.payload.thing
     let shown = action.payload.shown
diff --git a/src/core/plugins/layout/selectors.js b/src/core/plugins/layout/selectors.js
index 0eb0c522..42a3bcbb 100644
--- a/src/core/plugins/layout/selectors.js
+++ b/src/core/plugins/layout/selectors.js
@@ -5,6 +5,8 @@ const state = state => state
 
 export const current = state => state.get("layout")
 
+export const currentFilter = state => state.get("filter")
+
 export const isShown = (state, thing, def) => {
   thing = normalizeArray(thing)
   return Boolean(state.getIn(["shown", ...thing], def))