diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index e06b0470a3..3585f4d50d 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -42,6 +42,7 @@ Changelog
  * Fix: The save and preview buttons in the page editor are now mobile-friendly (Maarten Kling)
  * Fix: Page links within rich text now respect custom URLs defined on specific page models (Gary Krige, Huub Bouma)
  * Fix: Default avatar no longer visible when using a transparent gravatar image (Thijs Kramer)
+ * Fix: Scrolling within the datetime picker is now usable again for touchpads (Ralph Jacobs)
 
 
 1.9 (16.02.2017)
diff --git a/docs/releases/1.10.rst b/docs/releases/1.10.rst
index 7e9b652386..0ab538e52b 100644
--- a/docs/releases/1.10.rst
+++ b/docs/releases/1.10.rst
@@ -54,6 +54,7 @@ Bug fixes
  * The save and preview buttons in the page editor are now mobile-friendly (Maarten Kling)
  * Page links within rich text now respect custom URLs defined on specific page models (Gary Krige, Huub Bouma)
  * Default avatar no longer visible when using a transparent gravatar image (Thijs Kramer)
+ * Scrolling within the datetime picker is now usable again for touchpads (Ralph Jacobs)
 
 
 Upgrade considerations
diff --git a/wagtail/wagtailadmin/static_src/wagtailadmin/js/vendor/jquery.datetimepicker.js b/wagtail/wagtailadmin/static_src/wagtailadmin/js/vendor/jquery.datetimepicker.js
index d86bc728c7..d0d2859050 100644
--- a/wagtail/wagtailadmin/static_src/wagtailadmin/js/vendor/jquery.datetimepicker.js
+++ b/wagtail/wagtailadmin/static_src/wagtailadmin/js/vendor/jquery.datetimepicker.js
@@ -440,7 +440,7 @@
 				timeboxparent.on('mousewheel', function (event) {
 					var top = Math.abs(parseInt(timebox.css('marginTop'), 10));
 
-					top = top - (event.deltaY * 20);
+					top = top - (event.deltaY * 1);
 					if (top < 0) {
 						top = 0;
 					}