diff --git a/claude-spec/01-architecture.md b/claude-spec/01-architecture.md
index 13209150..8682a03e 100644
--- a/claude-spec/01-architecture.md
+++ b/claude-spec/01-architecture.md
@@ -171,7 +171,7 @@ taTranslationStore.saveTranslation()
 | `js/mzta-summarystore.js` | Summary-specific storage wrapper (`taSummaryStore` class) with caching, truncation, and processing-state tracking |
 | `js/mzta-translationstore.js` | Translation-specific storage wrapper (`taTranslationStore` class) with caching, truncation, and processing-state tracking |
 | `js/mzta-working-status.js` | Visual status indicator during AI processing |
-| `js/mzta-addatags-exclusion-list.js` | Tag exclusion list management |
+| `js/mzta-addtags-exclusion-list.js` | Tag exclusion list management |
 | `js/mzta-placeholders-autocomplete.js` | Autocomplete for placeholders in prompt editor |
 
 ## API Modules (`js/api/`)
diff --git a/js/mzta-addatags-exclusion-list.js b/js/mzta-addtags-exclusion-list.js
similarity index 100%
rename from js/mzta-addatags-exclusion-list.js
rename to js/mzta-addtags-exclusion-list.js
diff --git a/js/mzta-compose-script.js b/js/mzta-compose-script.js
index f16a7063..e996a7cb 100644
--- a/js/mzta-compose-script.js
+++ b/js/mzta-compose-script.js
@@ -580,7 +580,7 @@ switch (message.command) {
   case "getTags":
     // console.log(">>>>>>>>>>>>>> getTags: " + JSON.stringify(message.tags));
 
-    // ===== These methods are also defined in the file /js/mzta-addatags-exclusion-list.js
+    // ===== These methods are also defined in the file /js/mzta-addtags-exclusion-list.js
     async function addTags_getExclusionList() {
       let prefs_excluded_tags = await browser.storage.local.get({add_tags_exclusions: []});
       // console.log(">>>>>>>>>>>>>>> addTags_getExclusionList prefs_excluded_tags: " + JSON.stringify(prefs_excluded_tags));
diff --git a/pages/addtags/mzta-add-tags.js b/pages/addtags/mzta-add-tags.js
index c57901f9..af722adc 100644
--- a/pages/addtags/mzta-add-tags.js
+++ b/pages/addtags/mzta-add-tags.js
@@ -30,7 +30,7 @@ import { textareaAutocomplete } from "../../js/mzta-placeholders-autocomplete.js
 import {
   addTags_getExclusionList,
   addTags_setExclusionList
-} from "../../js/mzta-addatags-exclusion-list.js";
+} from "../../js/mzta-addtags-exclusion-list.js";
 import {
   getAccountsList,
   normalizeStringList,