diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 029f27e44f..0b4122f813 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -34,6 +34,7 @@ Changelog
  * 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)
  * Fix: Now user can upload images / documents only into permitted collection from choosers
+ * Fix: Explorer menu no longer scrolls with page content (Vincent Audebert)
 
 
 1.4.4 (xx.xx.2016)
diff --git a/docs/releases/1.5.rst b/docs/releases/1.5.rst
index 11259dbe60..2fd1a258d2 100644
--- a/docs/releases/1.5.rst
+++ b/docs/releases/1.5.rst
@@ -63,6 +63,7 @@ Bug fixes
  * All admin forms that could potentially include file upload fields now specify ``multipart/form-data`` where appropriate (Tim Heap)
  * REM units in Wagtailuserbar caused incorrect spacing (Vincent Audebert)
  * Now user can upload images / documents only into permitted collection from choosers
+ * Explorer menu no longer scrolls with page content (Vincent Audebert)
 
 
 Upgrade considerations
diff --git a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_main-nav.scss b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_main-nav.scss
index 363a95e0fd..13bf4ea90c 100644
--- a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_main-nav.scss
+++ b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_main-nav.scss
@@ -385,14 +385,14 @@ body.explorer-open {
 
     .explorer {
         width: 400px;
-        position: absolute;
-        top: 0;
-        left: 99%;
+        position: fixed;
+        top: 0 !important;
+        left: $menu-width;
         margin-top: 175px; // same as .nav-main minus 1 pixel for border
     }
 
     .dl-menu {
-        position: absolute;
+        position: fixed;
     }
 
     body.nav-open {