diff --git a/Makefile b/Makefile
index 96bc59f..3ab6d3f 100644
--- a/Makefile
+++ b/Makefile
@@ -37,6 +37,8 @@ install: schemas
 pack: schemas
 	gnome-extensions pack $(EXTENSION_UUID) \
 		--extra-source=ui \
+		--extra-source=dbus.js \
+		--extra-source=util.js \
 		--extra-source=light.css \
 		--force
 	@echo "Packed: $(EXTENSION_UUID).shell-extension.zip"
diff --git a/strata@edu4rdshl.dev/extension.js b/strata@edu4rdshl.dev/extension.js
index d115c12..4d4d571 100644
--- a/strata@edu4rdshl.dev/extension.js
+++ b/strata@edu4rdshl.dev/extension.js
@@ -13,13 +13,7 @@ import * as PanelMenu from 'resource:///org/gnome/shell/ui/panelMenu.js';
 
 import { StrataProxy, BUS_NAME, OBJECT_PATH } from './dbus.js';
 import { StrataPanel } from './ui/panel.js';
-
-function logError(label, err) {
-    if (err instanceof GLib.Error)
-        Gio.DBusError.strip_remote_error(err);
-    const tail = err !== undefined ? `: ${err?.message ?? err}` : '';
-    console.error(`[Strata] ${label}${tail}`);
-}
+import { logError } from './util.js';
 
 export default class StrataExtension extends Extension {
     /** @type {Gio.Subprocess | null} */
diff --git a/strata@edu4rdshl.dev/ui/clipboardItem.js b/strata@edu4rdshl.dev/ui/clipboardItem.js
index 9b0fcec..76a8787 100644
--- a/strata@edu4rdshl.dev/ui/clipboardItem.js
+++ b/strata@edu4rdshl.dev/ui/clipboardItem.js
@@ -6,6 +6,8 @@ import St from 'gi://St';
 import Clutter from 'gi://Clutter';
 import Gio from 'gi://Gio';
 
+import { logError } from '../util.js';
+
 const TEXT_PREVIEW_LEN = 140;
 const THUMB_SIZE = 48;
 
@@ -155,18 +157,18 @@ export const ClipboardItem = GObject.registerClass({
                                 this._thumbCache?.set(id, cachePath);
                                 applyStyle();
                             } catch (e) {
-                                console.error('[Strata] Thumbnail write error:', e);
+                                logError('Thumbnail write error', e);
                                 this._fallbackIcon(container);
                             }
                         }
                     );
                 } catch (e) {
-                    console.error('[Strata] Thumbnail fetch handler error:', e);
+                    logError('Thumbnail fetch handler error', e);
                     this._fallbackIcon(container);
                 }
             });
         } catch (e) {
-            console.error('[Strata] Thumbnail render error:', e);
+            logError('Thumbnail render error', e);
             this._fallbackIcon(container);
         }
         return container;
diff --git a/strata@edu4rdshl.dev/ui/panel.js b/strata@edu4rdshl.dev/ui/panel.js
index 21ffd86..dad7cc2 100644
--- a/strata@edu4rdshl.dev/ui/panel.js
+++ b/strata@edu4rdshl.dev/ui/panel.js
@@ -9,17 +9,11 @@ import Shell from 'gi://Shell';
 
 import * as Main from 'resource:///org/gnome/shell/ui/main.js';
 import { ClipboardItem } from './clipboardItem.js';
+import { logError } from '../util.js';
 
 const SEARCH_DEBOUNCE_MS = 150;
 const LOAD_MORE_THRESHOLD = 200;
 
-function logError(label, err) {
-    if (err instanceof GLib.Error)
-        Gio.DBusError.strip_remote_error(err);
-    const tail = err !== undefined ? `: ${err?.message ?? err}` : '';
-    console.error(`[Strata] ${label}${tail}`);
-}
-
 export class StrataPanel {
     constructor(proxy, settings) {
         this._proxy = proxy;
diff --git a/strata@edu4rdshl.dev/util.js b/strata@edu4rdshl.dev/util.js
new file mode 100644
index 0000000..6f85af1
--- /dev/null
+++ b/strata@edu4rdshl.dev/util.js
@@ -0,0 +1,11 @@
+/* util.js - shared helpers for the Strata extension. */
+
+import GLib from 'gi://GLib';
+import Gio from 'gi://Gio';
+
+export function logError(label, err) {
+    if (err instanceof GLib.Error)
+        Gio.DBusError.strip_remote_error(err);
+    const tail = err !== undefined ? `: ${err?.message ?? err}` : '';
+    console.error(`[Strata] ${label}${tail}`);
+}