diff --git a/abogen/integrations/audiobookshelf.py b/abogen/integrations/audiobookshelf.py
index 5fe8c53..f44c58a 100644
--- a/abogen/integrations/audiobookshelf.py
+++ b/abogen/integrations/audiobookshelf.py
@@ -32,7 +32,12 @@ class AudiobookshelfConfig:
         base = (self.base_url or "").strip()
         if not base:
             raise ValueError("Audiobookshelf base URL is required")
-        return base[:-1] if base.endswith("/") else base
+        normalized = base.rstrip("/")
+        # The web UI historically suggested including '/api' in the base URL; trim
+        # it here so we can safely append `/api/...` endpoints below.
+        if normalized.lower().endswith("/api"):
+            normalized = normalized[:-4]
+        return normalized or base
 
 
 class AudiobookshelfClient:
diff --git a/abogen/web/templates/settings.html b/abogen/web/templates/settings.html
index c3ecddb..dc721d8 100644
--- a/abogen/web/templates/settings.html
+++ b/abogen/web/templates/settings.html
@@ -432,7 +432,8 @@
             </div>
             <div class="field">
               <label for="audiobookshelf_base_url">Base URL</label>
-              <input type="url" id="audiobookshelf_base_url" name="audiobookshelf_base_url" value="{{ integrations.audiobookshelf.base_url }}" placeholder="https://abs.local:13378/api">
+              <input type="url" id="audiobookshelf_base_url" name="audiobookshelf_base_url" value="{{ integrations.audiobookshelf.base_url }}" placeholder="https://abs.local:13378">
+              <p class="hint">Use the server root (no trailing <code>/api</code>); the upload requests add it automatically.</p>
             </div>
             <div class="field field--inline">
               <div class="field__group">