diff --git a/lib/medialib.php b/lib/medialib.php
index 34c282908cd..a32a34c49ea 100644
--- a/lib/medialib.php
+++ b/lib/medialib.php
@@ -989,6 +989,7 @@ class core_media_player_swf extends core_media_player {
     <param name="scale" value="aspect" />
     <param name="base" value="." />
     <param name="allowscriptaccess" value="never" />
+    <param name="allowfullscreen" value="true" />
 <!--[if !IE]>-->
     <object type="application/x-shockwave-flash" data="$url" width="$width" height="$height">
       <param name="controller" value="true" />
@@ -997,6 +998,7 @@ class core_media_player_swf extends core_media_player {
       <param name="scale" value="aspect" />
       <param name="base" value="." />
       <param name="allowscriptaccess" value="never" />
+      <param name="allowfullscreen" value="true" />
 <!--<![endif]-->
 $fallback
 <!--[if !IE]>-->