diff --git a/icons/hicolor/32x32/mimetypes/application-certificate.png b/icons/hicolor/32x32/mimetypes/application-certificate.png
new file mode 100644
index 000000000..b75ba54e2
Binary files /dev/null and b/icons/hicolor/32x32/mimetypes/application-certificate.png differ
diff --git a/src/dialogs.py b/src/dialogs.py
index 7db7276df..777590d80 100644
--- a/src/dialogs.py
+++ b/src/dialogs.py
@@ -5468,6 +5468,12 @@ SHA256 Fingerprint: %(sha256)s
             'io': cert.get_notBefore(), 'eo': cert.get_notAfter(),
             'sha1': cert.digest('sha1'),
             'sha256': cert.digest('sha256')})
+        pix = gtkgui_helpers.get_icon_pixmap('application-certificate', size=32,
+            quiet=True)
+        if pix:
+            img =  Gtk.Image.new_from_pixbuf(pix)
+            img.show_all()
+            self.set_image(img)
         self.set_transient_for(parent)
         self.set_title(_('Certificate for account %s') % account)