diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7b0cf24..15330e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this project are documented here. Format loosely
 follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); versions
 correspond to git tags (`vX.Y.Z`) and `nodejs/package.json`'s `version`.
 
+## [1.8.1] - 2026-07-28
+
+### Fixed
+- **The resource modal's "Associated LDAP Groups" autocomplete went empty after the first Add/Edit** — `loadLdapGroups()`'s fetch-once cache guard (`if (ldapGroupsCache) return;`) also skipped repopulating the `<datalist>` on every call after the first, but the modal body (including that `<datalist>`) is rebuilt fresh and empty on every `app.modal.open()`. Now the fetch is still cached, but the datalist is always repopulated.
+
 ## [1.8.0] - 2026-07-28
 
 ### Added
diff --git a/nodejs/package.json b/nodejs/package.json
index 9c13b84..502e514 100755
--- a/nodejs/package.json
+++ b/nodejs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "t42-sso-manager",
-  "version": "1.8.0",
+  "version": "1.8.1",
   "description": "A very simple LDAP management and SSO system",
   "author": [
     {
diff --git a/nodejs/views/directory.ejs b/nodejs/views/directory.ejs
index d3ca838..e9aa7b6 100644
--- a/nodejs/views/directory.ejs
+++ b/nodejs/views/directory.ejs
@@ -563,10 +563,15 @@
   
   var ldapGroupsCache = null;
   async function loadLdapGroups() {
-    if (ldapGroupsCache) return;
     try {
-      const res = await app.api.get('group');
-      ldapGroupsCache = res.results;
+      if (!ldapGroupsCache) {
+        const res = await app.api.get('group');
+        ldapGroupsCache = res.results;
+      }
+      // Re-populate every call, not just the first -- #ldap-groups-datalist
+      // is rebuilt fresh (empty) on every app.modal.open(), so returning
+      // early here on a cache hit left the second and later modal opens
+      // with no autocomplete options at all.
       const $datalist = $('#ldap-groups-datalist');
       $datalist.empty();
       for (const cn of ldapGroupsCache) {