diff --git a/admin/check/check_attachments_inc.php b/admin/check/check_attachments_inc.php
index 862fba5368..0ef429dd75 100644
--- a/admin/check/check_attachments_inc.php
+++ b/admin/check/check_attachments_inc.php
@@ -92,29 +92,20 @@
 	}
 }
 
-$t_finfo_exists = class_exists( 'finfo' );
-check_print_test_warn_row(
-	'Fileinfo extension is available for determining file MIME types',
-	$t_finfo_exists,
-	array( false => 'Web clients may struggle to download files without knowing the MIME type of each attachment.' )
-);
-
-if( $t_finfo_exists ) {
-	$t_fileinfo_magic_db_file = config_get_global( 'fileinfo_magic_db_file' );
-	if( $t_fileinfo_magic_db_file ) {
-		check_print_info_row(
-			'Name of magic.db file set with the fileinfo_magic_db_file configuration value',
-			config_get_global( 'fileinfo_magic_db_file' ) );
-		check_print_test_row(
-			'fileinfo_magic_db_file configuration value points to an existing magic.db file',
-			file_exists( $t_fileinfo_magic_db_file ) );
-		$t_finfo = new finfo( FILEINFO_MIME, $t_fileinfo_magic_db_file );
-	} else {
-		$t_finfo = new finfo( FILEINFO_MIME );
-	}
+$t_fileinfo_magic_db_file = config_get_global( 'fileinfo_magic_db_file' );
+if( $t_fileinfo_magic_db_file ) {
+	check_print_info_row(
+		'Name of magic.db file set with the fileinfo_magic_db_file configuration value',
+		config_get_global( 'fileinfo_magic_db_file' ) );
 	check_print_test_row(
-		'Fileinfo extension can find and load a valid magic.db file',
-		$t_finfo !== false,
-		array( false => 'Ensure that the fileinfo_magic_db_file configuration value points to a valid magic.db file.' )
-	);
-}
\ No newline at end of file
+		'fileinfo_magic_db_file configuration value points to an existing magic.db file',
+		file_exists( $t_fileinfo_magic_db_file ) );
+	$t_finfo = new finfo( FILEINFO_MIME, $t_fileinfo_magic_db_file );
+} else {
+	$t_finfo = new finfo( FILEINFO_MIME );
+}
+check_print_test_row(
+	'Fileinfo extension can find and load a valid magic.db file',
+	$t_finfo !== false,
+	array( false => 'Ensure that the fileinfo_magic_db_file configuration value points to a valid magic.db file.' )
+);
diff --git a/admin/check/check_php_inc.php b/admin/check/check_php_inc.php
index 8fae5952a5..36bf5798cf 100644
--- a/admin/check/check_php_inc.php
+++ b/admin/check/check_php_inc.php
@@ -50,7 +50,8 @@
 	'pcre',
 	'Reflection',
 	'session',
-	'mbstring'
+	'mbstring',
+	'fileinfo'
 );
 
 foreach( $t_extensions_required as $t_extension ) {
diff --git a/core/file_api.php b/core/file_api.php
index a6e4816698..5c16e45cb2 100644
--- a/core/file_api.php
+++ b/core/file_api.php
@@ -993,7 +993,7 @@ function file_ensure_uploaded( array $p_file ) {
 }
 
 /**
- * Return instance of fileinfo class if enabled in php
+ * Return instance of fileinfo class
  * @return finfo instance of finfo class.
  */
 function file_create_finfo() {
diff --git a/docbook/Admin_Guide/en-US/Installation.xml b/docbook/Admin_Guide/en-US/Installation.xml
index 7def4c8c92..f7e8542ae3 100644
--- a/docbook/Admin_Guide/en-US/Installation.xml
+++ b/docbook/Admin_Guide/en-US/Installation.xml
@@ -181,6 +181,19 @@
 								<listitem><para><emphasis>mbstring</emphasis> -
 									Required for Unicode (UTF-8) support.
 								</para></listitem>
+								<listitem>
+									<para><emphasis>Fileinfo</emphasis> -
+										Guesses the MIME type of attachments
+									</para>
+									<para>Without this extension, file attachment
+										previews and downloads do not work
+										as MantisBT won't be able to send
+										the Content-Type header to a browser
+										requesting an attachment.
+									</para>
+									<para>This extension is included by default from
+										PHP version 5.3.x and above.
+									</para></listitem>
 							</itemizedlist></listitem>
 						</varlistentry>
 
@@ -195,19 +208,7 @@
 									required for the captcha feature
 								</para></listitem>
 
-								<listitem>
-									<para><emphasis>Fileinfo</emphasis> -
-										Guesses the MIME type of attachments
-									</para>
-									<para>Without this extension, file attachment
-										previews and downloads may not work
-										correctly as MantisBT won't be able to send
-										the Content-Type header to a browser
-										requesting an attachment.
-									</para>
-									<para>This extension is included by default from
-										PHP version 5.3.x and above.
-								</para></listitem>
+
 							</itemizedlist></listitem>
 						</varlistentry>