diff --git a/_test/tests/inc/parser/parser_media.test.php b/_test/tests/inc/parser/parser_media.test.php
index abbcfe2130ddb3cfc0ca5e5b69f7ed524c054d0a..7d2ff49a228906aa7284ea0d498a9af6f65ba6b0 100644
--- a/_test/tests/inc/parser/parser_media.test.php
+++ b/_test/tests/inc/parser/parser_media.test.php
@@ -118,12 +118,12 @@ class TestOfDoku_Parser_Media extends TestOfDoku_Parser {
         $this->assertNotSame(false, $substr_start, 'Substring not found.');
 
         // find $a_webm in $url
-        $a_webm = '<a href="' . DOKU_BASE . 'lib/exe/fetch.php?id=&amp;cache=&amp;media=wiki:kind_zu_katze.webm" class="media mediafile mf_webm" title="wiki:kind_zu_katze.webm (99.1 KB)">kind_zu_katze.webm</a>';
+        $a_webm = '<a href="' . DOKU_BASE . 'lib/exe/fetch.php?id=&amp;cache=&amp;media=wiki:kind_zu_katze.webm" class="media mediafile mf_webm" title="wiki:kind_zu_katze.webm (99.1&#xa0;KB)">kind_zu_katze.webm</a>';
         $substr_start = strpos($url, $a_webm, $substr_start + strlen($source_ogv));
         $this->assertNotSame(false, $substr_start, 'Substring not found.');
 
         // find $a_webm in $url
-        $a_ogv = '<a href="' . DOKU_BASE . 'lib/exe/fetch.php?id=&amp;cache=&amp;media=wiki:kind_zu_katze.ogv" class="media mediafile mf_ogv" title="wiki:kind_zu_katze.ogv (44.8 KB)">kind_zu_katze.ogv</a>';
+        $a_ogv = '<a href="' . DOKU_BASE . 'lib/exe/fetch.php?id=&amp;cache=&amp;media=wiki:kind_zu_katze.ogv" class="media mediafile mf_ogv" title="wiki:kind_zu_katze.ogv (44.8&#xa0;KB)">kind_zu_katze.ogv</a>';
         $substr_start = strpos($url, $a_ogv, $substr_start + strlen($a_webm));
         $this->assertNotSame(false, $substr_start, 'Substring not found.');
 
diff --git a/inc/common.php b/inc/common.php
index 539aed29098738566f8752352353e5e8a185e598..c19c9e907f4ac4be31598d79ac525846ea3d0d29 100644
--- a/inc/common.php
+++ b/inc/common.php
@@ -1477,7 +1477,7 @@ function filesize_h($size, $dec = 1) {
         $i++;
     }
 
-    return round($size, $dec).' '.$sizes[$i];
+    return round($size, $dec).'&#xa0;'.$sizes[$i];
 }
 
 /**