diff --git a/src/pyj/read_book/prefs/scrolling.pyj b/src/pyj/read_book/prefs/scrolling.pyj
index 5a4870be5b..6c322ac593 100644
--- a/src/pyj/read_book/prefs/scrolling.pyj
+++ b/src/pyj/read_book/prefs/scrolling.pyj
@@ -119,7 +119,7 @@ def create_scrolling_panel(container, apply_func, cancel_func):
             ),
             *spinner(
                 'scroll_mouse_boundary_delay',
-                _('Seconds to pause when mouse-scrolling past internal file boundaries'),
+                _('Seconds to pause when mouse-scrolling past internal file boundaries:'),
                 title=_('Set to zero to scroll past internal file boundaries without delay'),
                 step=0.25,
                 min=MIN_SCROLL_MOUSE_DELAY,
diff --git a/src/pyj/session.pyj b/src/pyj/session.pyj
index 5a5e247d53..cf281a07f3 100644
--- a/src/pyj/session.pyj
+++ b/src/pyj/session.pyj
@@ -55,7 +55,7 @@ all_settings = {
     'paged_pixel_scroll_threshold': {'default': 60, 'category': 'read_book'},
     'read_mode': {'default': 'paged', 'category': 'read_book', 'is_local': True},
     'scroll_auto_boundary_delay': {'default': 5, 'category': 'read_book', 'is_local': True},
-    'scroll_mouse_boundary_delay': {'default': 0, 'category': 'read_book', 'is_local': True},
+    'scroll_mouse_boundary_delay': {'default': 0.5, 'category': 'read_book', 'is_local': True},
     'scroll_stop_boundaries': {'default': False, 'category': 'read_book', 'is_local': True},
     'standalone_font_settings': {'default': {}, 'category': 'read_book', 'is_local': True},
     'standalone_misc_settings': {'default': {}, 'category': 'read_book', 'is_local': True},