diff --git a/ChangeLog b/ChangeLog
index 1f9551cd1e..a7024adc16 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -40,6 +40,7 @@ phpMyAdmin - ChangeLog
 - issue #13468 Avoid breakage if set_time_limit is disabled
 - issue #13471 Fail if ini_set/ini_get are disabled
 - issue #13436 Automatically connect using SSL when server is configured so
+- issue #13478 Fixed usage of some browser transformations
 
 4.7.2 (2017-06-29)
 - issue #13314 Make theme selection keep current server
diff --git a/libraries/classes/Transformations.php b/libraries/classes/Transformations.php
index 29dc1a703c..5f33c646f4 100644
--- a/libraries/classes/Transformations.php
+++ b/libraries/classes/Transformations.php
@@ -209,6 +209,32 @@ class Transformations
         return $class_name::getName();
     }
 
+    /**
+     * Fixups old MIME or tranformation name to new one
+     *
+     * - applies some hardcoded fixups
+     * - adds spaces after _ and numbers
+     * - capitalizes words
+     * - removes back spaces
+     *
+     * @param string $value Value to fixup
+     *
+     * @return string
+     */
+    static function fixupMIME($value)
+    {
+        $value = str_replace(
+            array("jpeg", "png"), array("JPEG", "PNG"), $value
+        );
+        return str_replace(
+            ' ',
+            '',
+            ucwords(
+                preg_replace('/([0-9_]+)/', '$1 ', $value)
+            )
+        );
+    }
+
     /**
      * Gets the mimetypes for all columns of a table
      *
@@ -256,24 +282,10 @@ class Transformations
         );
 
         foreach ($result as $column => $values) {
-            // replacements in mimetype and transformation
-            $values = str_replace("jpeg", "JPEG", $values);
-            $values = str_replace("png", "PNG", $values);
-
             // convert mimetype to new format (f.e. Text_Plain, etc)
             $delimiter_space = '- ';
             $delimiter = "_";
-            $values['mimetype'] = str_replace(
-                $delimiter_space,
-                $delimiter,
-                ucwords(
-                    str_replace(
-                        $delimiter,
-                        $delimiter_space,
-                        $values['mimetype']
-                    )
-                )
-            );
+            $values['mimetype'] = self::fixupMIME($values['mimetype']);
 
             // For transformation of form
             // output/image_jpeg__inline.inc.php
@@ -285,17 +297,7 @@ class Transformations
                 $values['transformation'] = $dir[1];
             }
 
-            $values['transformation'] = str_replace(
-                $delimiter_space,
-                $delimiter,
-                ucwords(
-                    str_replace(
-                        $delimiter,
-                        $delimiter_space,
-                        $values['transformation']
-                    )
-                )
-            );
+            $values['transformation'] = self::fixupMIME($values['transformation']);
             $values['transformation'] = $subdir . $values['transformation'];
             $result[$column] = $values;
         }
diff --git a/test/classes/TransformationsTest.php b/test/classes/TransformationsTest.php
index e1af2624f1..437800944d 100644
--- a/test/classes/TransformationsTest.php
+++ b/test/classes/TransformationsTest.php
@@ -254,4 +254,37 @@ class TransformationsTest extends PHPUnit_Framework_TestCase
             $actual
         );
     }
+
+    /**
+     * @dataProvider fixupData
+     */
+    public function testFixup($value, $expected)
+    {
+        $this->assertEquals(
+            $expected,
+            Transformations::fixupMIME($value)
+        );
+    }
+
+    public function fixupData()
+    {
+        return array(
+            array(
+                'text_plain_bool2text.php',
+                'Text_Plain_Bool2Text.php'
+            ),
+            array(
+                'application_octetstream_download.php',
+                'Application_Octetstream_Download.php'
+            ),
+            array(
+                'text_plain_json.php',
+                'Text_Plain_Json.php'
+            ),
+            array(
+                'image_jpeg_link.php',
+                'Image_JPEG_Link.php'
+            ),
+        );
+    }
 }