diff --git a/application/FileUtils.php b/application/FileUtils.php
index b89ea12..ba40982 100644
--- a/application/FileUtils.php
+++ b/application/FileUtils.php
@@ -1,5 +1,7 @@
 <?php
 
+use Shaarli\Exceptions\IOException;
+
 require_once 'exceptions/IOException.php';
 
 /**
diff --git a/application/LinkDB.php b/application/LinkDB.php
index 4bbc295..87a53e2 100644
--- a/application/LinkDB.php
+++ b/application/LinkDB.php
@@ -1,4 +1,7 @@
 <?php
+
+use Shaarli\Exceptions\IOException;
+
 /**
  * Data storage for links.
  *
diff --git a/application/Updater.php b/application/Updater.php
index 6b94c5e..c0d541b 100644
--- a/application/Updater.php
+++ b/application/Updater.php
@@ -2,6 +2,7 @@
 use Shaarli\Config\ConfigJson;
 use Shaarli\Config\ConfigPhp;
 use Shaarli\Config\ConfigManager;
+use Shaarli\Exceptions\IOException;
 use Shaarli\Thumbnailer;
 
 /**
diff --git a/application/config/ConfigJson.php b/application/config/ConfigJson.php
index 8c8d561..4509357 100644
--- a/application/config/ConfigJson.php
+++ b/application/config/ConfigJson.php
@@ -47,7 +47,7 @@ class ConfigJson implements ConfigIO
         $print = defined('JSON_PRETTY_PRINT') ? JSON_PRETTY_PRINT : 0;
         $data = self::getPhpHeaders() . json_encode($conf, $print) . self::getPhpSuffix();
         if (!file_put_contents($filepath, $data)) {
-            throw new \IOException(
+            throw new \Shaarli\Exceptions\IOException(
                 $filepath,
                 t('Shaarli could not create the config file. '.
                   'Please make sure Shaarli has the right to write in the folder is it installed in.')
diff --git a/application/config/ConfigManager.php b/application/config/ConfigManager.php
index 32aaea4..e6c3507 100644
--- a/application/config/ConfigManager.php
+++ b/application/config/ConfigManager.php
@@ -207,7 +207,7 @@ class ConfigManager
      *
      * @throws MissingFieldConfigException: a mandatory field has not been provided in $conf.
      * @throws UnauthorizedConfigException: user is not authorize to change configuration.
-     * @throws \IOException: an error occurred while writing the new config file.
+     * @throws \Shaarli\Exceptions\IOException: an error occurred while writing the new config file.
      */
     public function write($isLoggedIn)
     {
diff --git a/application/config/ConfigPhp.php b/application/config/ConfigPhp.php
index 9625fe1..9ed5d31 100644
--- a/application/config/ConfigPhp.php
+++ b/application/config/ConfigPhp.php
@@ -124,7 +124,7 @@ class ConfigPhp implements ConfigIO
         if (!file_put_contents($filepath, $configStr)
             || strcmp(file_get_contents($filepath), $configStr) != 0
         ) {
-            throw new \IOException(
+            throw new \Shaarli\Exceptions\IOException(
                 $filepath,
                 t('Shaarli could not create the config file. '.
                   'Please make sure Shaarli has the right to write in the folder is it installed in.')
diff --git a/application/exceptions/IOException.php b/application/exceptions/IOException.php
index 18e46b7..2aa25e5 100644
--- a/application/exceptions/IOException.php
+++ b/application/exceptions/IOException.php
@@ -1,4 +1,7 @@
 <?php
+namespace Shaarli\Exceptions;
+
+use Exception;
 
 /**
  * Exception class thrown when a filesystem access failure happens
@@ -17,6 +20,6 @@ class IOException extends Exception
     {
         $this->path = $path;
         $this->message = empty($message) ? t('Error accessing') : $message;
-        $this->message .= ' "' . $this->path .'"';
+        $this->message .= ' "' . $this->path . '"';
     }
 }
diff --git a/composer.json b/composer.json
index dccf83b..027203f 100644
--- a/composer.json
+++ b/composer.json
@@ -36,6 +36,7 @@
             "Shaarli\\Api\\Exceptions\\": "application/api/exceptions",
             "Shaarli\\Config\\": "application/config/",
             "Shaarli\\Config\\Exception\\": "application/config/exception",
+            "Shaarli\\Exceptions\\": "application/exceptions",
             "Shaarli\\Security\\": "application/security"
         }
     }
diff --git a/tests/FileUtilsTest.php b/tests/FileUtilsTest.php
index d764e49..9596dba 100644
--- a/tests/FileUtilsTest.php
+++ b/tests/FileUtilsTest.php
@@ -1,5 +1,7 @@
 <?php
 
+use Shaarli\Exceptions\IOException;
+
 require_once 'application/FileUtils.php';
 
 /**
@@ -48,7 +50,7 @@ class FileUtilsTest extends PHPUnit_Framework_TestCase
     /**
      * File not writable: raise an exception.
      *
-     * @expectedException IOException
+     * @expectedException Shaarli\Exceptions\IOException
      * @expectedExceptionMessage Error accessing "sandbox/flat.db"
      */
     public function testWriteWithoutPermission()
@@ -61,7 +63,7 @@ class FileUtilsTest extends PHPUnit_Framework_TestCase
     /**
      * Folder non existent: raise an exception.
      *
-     * @expectedException IOException
+     * @expectedException Shaarli\Exceptions\IOException
      * @expectedExceptionMessage Error accessing "nopefolder"
      */
     public function testWriteFolderDoesNotExist()
@@ -72,7 +74,7 @@ class FileUtilsTest extends PHPUnit_Framework_TestCase
     /**
      * Folder non writable: raise an exception.
      *
-     * @expectedException IOException
+     * @expectedException Shaarli\Exceptions\IOException
      * @expectedExceptionMessage Error accessing "sandbox"
      */
     public function testWriteFolderPermission()
diff --git a/tests/LinkDBTest.php b/tests/LinkDBTest.php
index c763c0c..9b2f35e 100644
--- a/tests/LinkDBTest.php
+++ b/tests/LinkDBTest.php
@@ -3,6 +3,8 @@
  * Link datastore tests
  */
 
+use Shaarli\Exceptions\IOException;
+
 require_once 'application/Cache.php';
 require_once 'application/FileUtils.php';
 require_once 'application/LinkDB.php';
@@ -100,7 +102,7 @@ class LinkDBTest extends PHPUnit_Framework_TestCase
     /**
      * Attempt to instantiate a LinkDB whereas the datastore is not writable
      *
-     * @expectedException              IOException
+     * @expectedException              Shaarli\Exceptions\IOException
      * @expectedExceptionMessageRegExp /Error accessing "null"/
      */
     public function testConstructDatastoreNotWriteable()
diff --git a/tests/config/ConfigJsonTest.php b/tests/config/ConfigJsonTest.php
index d237bc8..99c1ea5 100644
--- a/tests/config/ConfigJsonTest.php
+++ b/tests/config/ConfigJsonTest.php
@@ -111,7 +111,7 @@ class ConfigJsonTest extends \PHPUnit_Framework_TestCase
     /**
      * Write to invalid path.
      *
-     * @expectedException \IOException
+     * @expectedException \Shaarli\Exceptions\IOException
      */
     public function testWriteInvalidArray()
     {
@@ -122,7 +122,7 @@ class ConfigJsonTest extends \PHPUnit_Framework_TestCase
     /**
      * Write to invalid path.
      *
-     * @expectedException \IOException
+     * @expectedException \Shaarli\Exceptions\IOException
      */
     public function testWriteInvalidBlank()
     {