diff --git a/qui/updater/updater.py b/qui/updater/updater.py
index fe231664..d557d47d 100644
--- a/qui/updater/updater.py
+++ b/qui/updater/updater.py
@@ -225,6 +225,9 @@ def cell_data_func(_column, cell, model, it, data):
             self.log.info("Show intro page.")
         self.main_window.show_all()
         width = self.intro_page.vm_list.get_preferred_width().natural_width
+        # Wide enough for details section to show update progress.
+        # But still less than 1024 pixels to do not break OpenQA tests.
+        width = max(width, 1000)
         height = min(
             int(width * 1.2), self.main_window.get_screen().get_height() - 48
         )