diff --git a/src/backend/src/filesystem/hl_operations/hl_readdir.js b/src/backend/src/filesystem/hl_operations/hl_readdir.js
index 020bb484c..81a57921d 100644
--- a/src/backend/src/filesystem/hl_operations/hl_readdir.js
+++ b/src/backend/src/filesystem/hl_operations/hl_readdir.js
@@ -39,7 +39,7 @@ class HLReadDir extends HLFilesystemOperation {
         });
     }
     async __run () {
-        const { subject: subject_let, user, no_thumbs, no_assocs, actor } = this.values;
+        const { subject: subject_let, user, no_thumbs, no_assocs, no_subdomains, actor } = this.values;
         let subject = subject_let;
 
         if ( ! await subject.exists() ) {
@@ -120,10 +120,11 @@ class HLReadDir extends HLFilesystemOperation {
         }
 
         if ( ! no_assocs ) {
-            await Promise.all([
-                this.#batchFetchSuggestedApps(children, user),
-                this.#batchFetchSubdomains(children, user),
-            ]);
+            await this.#batchFetchSuggestedApps(children, user);
+        }
+
+        if ( ! no_subdomains ) {
+            await this.#batchFetchSubdomains(children, user);
         }
 
         return Promise.all(children.map(async child => {
diff --git a/src/backend/src/routers/filesystem_api/readdir.js b/src/backend/src/routers/filesystem_api/readdir.js
index c3b42dda3..ec235c2ef 100644
--- a/src/backend/src/routers/filesystem_api/readdir.js
+++ b/src/backend/src/routers/filesystem_api/readdir.js
@@ -42,6 +42,7 @@ module.exports = eggspress('/readdir', {
         recursive: new FlagParam('recursive', { optional: true }),
         no_thumbs: new FlagParam('no_thumbs', { optional: true }),
         no_assocs: new FlagParam('no_assocs', { optional: true }),
+        no_subdomains: new FlagParam('no_subdomains', { optional: true }),
     },
 }, async (req, res, next) => {
     let log; {
@@ -56,6 +57,7 @@ module.exports = eggspress('/readdir', {
     const recursive = req.values.recursive;
     const no_thumbs = req.values.no_thumbs;
     const no_assocs = req.values.no_assocs;
+    const no_subdomains = req.values.no_subdomains;
 
     const hl_readdir = new HLReadDir();
     const result = await hl_readdir.run({
@@ -63,6 +65,7 @@ module.exports = eggspress('/readdir', {
         recursive,
         no_thumbs,
         no_assocs,
+        no_subdomains,
         user: req.user,
         actor: req.actor,
     });