diff --git a/api/base64.php b/api/base64.php
index ff6be61..b90384c 100644
--- a/api/base64.php
+++ b/api/base64.php
@@ -3,6 +3,8 @@
 define('DS', DIRECTORY_SEPARATOR);
 define('ROOT', dirname(__FILE__).'/..');
 
+header('Content-Type: application/json; charset=utf-8');
+
 //loading default settings if exist
 if(!file_exists(ROOT.DS.'inc'.DS.'config.inc.php'))
 	exit('Rename /inc/example.config.inc.php to /inc/config.inc.php first!');
diff --git a/api/geturl.php b/api/geturl.php
index 8eecebb..4c29dc4 100644
--- a/api/geturl.php
+++ b/api/geturl.php
@@ -3,6 +3,8 @@
 define('DS', DIRECTORY_SEPARATOR);
 define('ROOT', dirname(__FILE__).'/..');
 
+header('Content-Type: application/json; charset=utf-8');
+
 //loading default settings if exist
 if(!file_exists(ROOT.DS.'inc'.DS.'config.inc.php'))
 	exit('Rename /inc/example.config.inc.php to /inc/config.inc.php first!');
diff --git a/api/info.php b/api/info.php
index db0233a..ec33d70 100644
--- a/api/info.php
+++ b/api/info.php
@@ -3,6 +3,8 @@
 define('DS', DIRECTORY_SEPARATOR);
 define('ROOT', dirname(__FILE__).'/..');
 
+header('Content-Type: application/json; charset=utf-8');
+
 //loading default settings if exist
 if(!file_exists(ROOT.DS.'inc'.DS.'config.inc.php'))
 	exit('Rename /inc/example.config.inc.php to /inc/config.inc.php first!');
diff --git a/api/upload.php b/api/upload.php
index 5614ab5..7514d96 100644
--- a/api/upload.php
+++ b/api/upload.php
@@ -3,6 +3,8 @@
 define('DS', DIRECTORY_SEPARATOR);
 define('ROOT', dirname(__FILE__).DS.'..');
 
+header('Content-Type: application/json; charset=utf-8');
+
 //loading default settings if exist
 if(!file_exists(ROOT.DS.'inc'.DS.'config.inc.php'))
 	exit('Rename /inc/example.config.inc.php to /inc/config.inc.php first!');