diff --git a/gramps/gui/plug/export/_exportassistant.py b/gramps/gui/plug/export/_exportassistant.py
index e1f89da93..089b21664 100644
--- a/gramps/gui/plug/export/_exportassistant.py
+++ b/gramps/gui/plug/export/_exportassistant.py
@@ -160,6 +160,8 @@ class ExportAssistant(Gtk.Assistant, ManagedWindow) :
         label = Gtk.Label(label=self.get_intro_text())
         label.set_line_wrap(True)
         label.set_use_markup(True)
+        if (Gtk.get_major_version(), Gtk.get_minor_version()) >= (3, 10):
+            label.set_max_width_chars(60)
         
         image = Gtk.Image()
         image.set_from_file(SPLASH)
diff --git a/gramps/plugins/tool/mediamanager.py b/gramps/plugins/tool/mediamanager.py
index 7b32d001d..4d1e5e2d3 100644
--- a/gramps/plugins/tool/mediamanager.py
+++ b/gramps/plugins/tool/mediamanager.py
@@ -211,6 +211,8 @@ class IntroductionPage(Gtk.VBox):
         label = Gtk.Label(label=self.__get_intro_text())
         label.set_line_wrap(True)
         label.set_use_markup(True)
+        if (Gtk.get_major_version(), Gtk.get_minor_version()) >= (3, 10):
+            label.set_max_width_chars(60)
 
         self.pack_start(image, False, False, 0)
         self.pack_start(label, False, False, 5)