diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index f3da498c98..389ac38a1d 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -32,6 +32,7 @@ Changelog
  * Fix: Direct usage of `Document` model replaced with `get_document_model` function in `wagtail.contrib.wagtailmedusa` and in `wagtail.contrib.wagtailapi`
  * Fix: Failures on sending moderation notification emails now produce a warning, rather than crashing the admin page outright (Matt Fozard)
  * Fix: All admin forms that could potentially include file upload fields now specify `multipart/form-data` where appropriate (Tim Heap)
+* Fix: REM units in Wagtailuserbar caused incorrect spacing (Vincent Audebert)
 
 
 1.4.4 (xx.xx.2016)
diff --git a/CONTRIBUTORS.rst b/CONTRIBUTORS.rst
index e935697e31..9b1a00b4fb 100644
--- a/CONTRIBUTORS.rst
+++ b/CONTRIBUTORS.rst
@@ -125,6 +125,7 @@ Contributors
 * Andy Babic
 * Tomas Olander
 * Andrew Tork Baker
+* Vincent Audebert
 
 Translators
 ===========
diff --git a/docs/releases/1.5.rst b/docs/releases/1.5.rst
index e18016921a..a26906d673 100644
--- a/docs/releases/1.5.rst
+++ b/docs/releases/1.5.rst
@@ -61,6 +61,7 @@ Bug fixes
  * Direct usage of ``Document`` model replaced with ``get_document_model`` function in ``wagtail.contrib.wagtailmedusa`` and in ``wagtail.contrib.wagtailapi``
  * Failures on sending moderation notification emails now produce a warning, rather than crashing the admin page outright (Matt Fozard)
 * Fix: All admin forms that could potentially include file upload fields now specify ``multipart/form-data`` where appropriate (Tim Heap)
+* Fix: REM units in Wagtailuserbar caused incorrect spacing (Vincent Audebert)
 
 
 Upgrade considerations
diff --git a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/userbar.scss b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/userbar.scss
index 6ed3108d6f..bb3090aa06 100644
--- a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/userbar.scss
+++ b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/userbar.scss
@@ -3,13 +3,12 @@
 @import 'wagtailadmin/scss/font-icons';
 @import 'wagtailadmin/scss/variables-icons';
 
-
 // =============================================================================
 // Variables
 // =============================================================================
 
 $size-home-button: 3.5em;
-$position: 2rem;
+$position: 2em;
 $width-arrow: .6em;
 $box-shadow-props: 0 0 1px 0 rgba(107, 214, 230, 1);
 $max-items: 12;
@@ -239,7 +238,7 @@ $positions: (
         input {
             font-size: 14px !important;
             text-align: left;
-            padding: 0.8rem 1.7rem 0.8rem 3.5rem;
+            padding: 0.8em 1.7em 0.8em 2.7em;
         }
 
         input {
@@ -274,11 +273,11 @@ $positions: (
         .#{$namespace}-userbar-nav .#{$namespace}-userbar__item {
             // Yes, we could use an @else, but there's a bug in scss-lint.
             @if $vertical == 'bottom' {
-                transform: translateY(1rem);
+                transform: translateY(1em);
             }
 
             @if $vertical == 'top' {
-                transform: translateY(-1rem);
+                transform: translateY(-1em);
             }
         }