diff --git a/src/pyj/read_book/flow_mode.pyj b/src/pyj/read_book/flow_mode.pyj
index ebf89dda61..bdea2f3648 100644
--- a/src/pyj/read_book/flow_mode.pyj
+++ b/src/pyj/read_book/flow_mode.pyj
@@ -62,9 +62,9 @@ def goto_boundary(y):
     window.scrollTo(window.pageXOffset, 0)
 
 @check_for_scroll_end
-def scroll_by_page(y):
+def scroll_by_page(backward):
     h = window.innerHeight - 10
-    window.scrollBy(0, -h if y < 0 else h)
+    window.scrollBy(0, -h if backward else h)
 
 def flow_onkeydown(evt):
     handled = False
@@ -92,7 +92,7 @@ def flow_onkeydown(evt):
                 window.scrollTo(window.pageXOffset, document_height())
     elif key is 'pageup' or key is 'pagedown' or key is 'space':
         handled = True
-        scroll_by_page(-1 if key is 'pageup' else 1)
+        scroll_by_page(key is 'pageup')
     if handled:
         evt.preventDefault()
 
@@ -158,3 +158,7 @@ def handle_gesture(gesture):
                 window.scrollBy(delta, 0)
         if not gesture.active and not gesture.is_held:
             flick_animator.start(gesture)
+    elif gesture.type is 'prev-page':
+        scroll_by_page(True)
+    elif gesture.type is 'next-page':
+        scroll_by_page(False)
diff --git a/src/pyj/read_book/paged_mode.pyj b/src/pyj/read_book/paged_mode.pyj
index 085bea65e3..4e9709ae61 100644
--- a/src/pyj/read_book/paged_mode.pyj
+++ b/src/pyj/read_book/paged_mode.pyj
@@ -500,3 +500,7 @@ def handle_gesture(gesture):
         else:
             if not gesture.active or gesture.is_held:
                 scroll_by_page(gesture.direction is 'right', True)
+    elif gesture.type is 'prev-page':
+        scroll_by_page(True, False)
+    elif gesture.type is 'next-page':
+        scroll_by_page(False, False)
diff --git a/src/pyj/read_book/touch.pyj b/src/pyj/read_book/touch.pyj
index 0a6fe46f3b..7bfe79eda2 100644
--- a/src/pyj/read_book/touch.pyj
+++ b/src/pyj/read_book/touch.pyj
@@ -204,13 +204,13 @@ class TouchHandler:
                         elem.dispatchEvent(fake_click)
                 return
             if not tap_on_link(gesture):
-                if gesture.viewport_y < window.innerHeight / 4:
+                if gesture.viewport_y < min(100, window.innerHeight / 4):
                     gesture.type = 'show-chrome'
                 else:
-                    # TODO: Convert the tap gesture into
-                    # semantic gestures based on position of tap (next page/previous
-                    # page/show ui) as these are common to both paged and flow mode.
-                    pass
+                    if gesture.viewport_x < min(100, window.innerWidth / 4):
+                        gesture.type = 'prev-page'
+                    else:
+                        gesture.type = 'next-page'
         get_boss().handle_gesture(gesture)
 
 touch_handler = TouchHandler()