diff --git a/gramps/gui/editors/filtereditor.py b/gramps/gui/editors/filtereditor.py
index 03b6914ee..583efec07 100644
--- a/gramps/gui/editors/filtereditor.py
+++ b/gramps/gui/editors/filtereditor.py
@@ -606,16 +606,16 @@ class EditRule(ManagedWindow):
             if class_obj.allow_regex:
                 use_regex = Gtk.CheckButton(label=_('Use regular expressions'))
                 tip = _('Interpret the contents of string fields as regular '
-                        'expressions.\n'
-                        'A decimal point will match any character. '
-                        'A question mark will match zero or one occurences '
-                        'of the previous character or group. '
-                        'An asterisk will match zero or more occurences. '
-                        'A plus sign will match one or more occurences. '
-                        'Use parentheses to group expressions. '
-                        'Specify alternatives using a vertical bar. '
-                        'A caret will match the start of a line. '
-                        'A dollar sign will match the end of a line.')
+                        'expressions:\n'
+                        '.\tA decimal point will match any character.\n'
+                        '?\tA question mark will match zero or one occurences '
+                        'of the previous character or group.\n'
+                        '*\tAn asterisk will match zero or more occurences.\n'
+                        '+\tA plus sign will match one or more occurences.\n'
+                        '()\tUse parentheses to group expressions.\n'
+                        '|\tSpecify alternatives using a vertical bar.\n'
+                        '^\tA caret will match the start of a line.\n'
+                        '$\tA dollar sign will match the end of a line.')
                 use_regex.set_tooltip_text(tip)
                 grid.attach(use_regex, 1, pos, 1, 1)