diff --git a/resources/templates/export.twig b/resources/templates/export.twig
index 9d255696c8..1d10e1b804 100644
--- a/resources/templates/export.twig
+++ b/resources/templates/export.twig
@@ -422,7 +422,10 @@
                 <li class="list-group-item">
                   <div class="row">
                     <div class="col-auto">
-                      <label for="compression" class="col-form-label">{{ t('Compression:') }}</label>
+                      <label for="compression" class="col-form-label">
+                        {{ t('Compression:') }}
+                        {{ show_hint('Compressing big tables requires PHP memory. Be aware that this might produce invalid files %s'|format(get_formatted_maximum_upload_size(export_memory_limit))) }}
+                      </label>
                     </div>
                     <div class="col-auto">
                       <select class="form-select" id="compression" name="compression">
diff --git a/src/Controllers/Database/ExportController.php b/src/Controllers/Database/ExportController.php
index 2977072602..220474acef 100644
--- a/src/Controllers/Database/ExportController.php
+++ b/src/Controllers/Database/ExportController.php
@@ -145,6 +145,7 @@ final class ExportController implements InvocableController
         );
 
         $this->response->render('database/export/index', array_merge($options, [
+            'export_memory_limit' => $this->export->getMemoryLimit(),
             'page_settings_error_html' => $pageSettingsErrorHtml,
             'page_settings_html' => $pageSettingsHtml,
             'structure_or_data_forced' => $request->getParsedBodyParam('structure_or_data_forced', 0),