diff --git a/CHANGELOG.md b/CHANGELOG.md
index f4aff471..8dfec8fb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## unreleased
+
+### Fixed
+
+- UI no longer throws an error if the STAC API does not support a queryables endpoint.
+
 ## 5.1.0 - 2024-04-10
 
 ### Added
diff --git a/src/components/CloudSlider/CloudSlider.jsx b/src/components/CloudSlider/CloudSlider.jsx
index 97694169..cf0dfbeb 100644
--- a/src/components/CloudSlider/CloudSlider.jsx
+++ b/src/components/CloudSlider/CloudSlider.jsx
@@ -26,7 +26,7 @@ const CloudSlider = () => {
   useEffect(() => {
     if (_selectedCollectionData) {
       const supportsCloudCover =
-        _selectedCollectionData.queryables['eo:cloud_cover']
+        _selectedCollectionData.queryables?.['eo:cloud_cover']
       if (supportsCloudCover) {
         setDisabled(!supportsCloudCover)
         dispatch(setShowCloudSlider(true))
diff --git a/src/utils/searchHelper.js b/src/utils/searchHelper.js
index ad1d21bc..d2505917 100644
--- a/src/utils/searchHelper.js
+++ b/src/utils/searchHelper.js
@@ -122,13 +122,13 @@ function buildSearchScenesParams(gridCodeToSearchIn) {
   }
 
   const query = {}
-  if (_selectedCollection.queryables['eo:cloud_cover']) {
+  if (_selectedCollection.queryables?.['eo:cloud_cover']) {
     query['eo:cloud_cover'] = {
       gte: 0,
       lte: store.getState().mainSlice.cloudCover
     }
   }
-  if (_selectedCollection.queryables['sar:polarizations']) {
+  if (_selectedCollection.queryables?.['sar:polarizations']) {
     query['sar:polarizations'] = { in: ['VV', 'VH'] }
   }
   if (gridCodeToSearchIn) {
@@ -208,13 +208,13 @@ function buildSearchAggregateParams(gridType) {
   }
 
   const query = {}
-  if (_selectedCollection.queryables['eo:cloud_cover']) {
+  if (_selectedCollection.queryables?.['eo:cloud_cover']) {
     query['eo:cloud_cover'] = {
       gte: 0,
       lte: store.getState().mainSlice.cloudCover
     }
   }
-  if (_selectedCollection.queryables['sar:polarizations']) {
+  if (_selectedCollection.queryables?.['sar:polarizations']) {
     query['sar:polarizations'] = { in: ['VV', 'VH'] }
   }