diff --git a/js/ui/extensionDownloader.js b/js/ui/extensionDownloader.js
index 94ba8fad5..b3cef41a6 100644
--- a/js/ui/extensionDownloader.js
+++ b/js/ui/extensionDownloader.js
@@ -113,6 +113,24 @@ async function extractExtensionArchive(bytes, dir) {
         ['unzip', '-uod', dir.get_path(), '--', file.get_path()],
         Gio.SubprocessFlags.NONE);
     await unzip.wait_check_async(null);
+
+    const schemasPath = dir.get_child('schemas');
+    const info = await schemasPath.query_info_async(
+        Gio.FILE_ATTRIBUTE_STANDARD_TYPE,
+        Gio.FileQueryInfoFlags.NONE,
+        GLib.PRIORITY_DEFAULT,
+        null);
+
+    if (info.get_file_type() === Gio.FileType.DIRECTORY) {
+        const compileSchema = Gio.Subprocess.new(
+            ['glib-compile-schemas', '--strict', schemasPath.get_path()],
+            Gio.SubprocessFlags.NONE);
+        try {
+            await compileSchema.wait_check_async(null);
+        } catch (e) {
+            log(`Error while compiling schema for extension ${dir.get_basename()}: (${e.message})`);
+        }
+    }
 }
 
 /**