diff --git a/API/Client/JSON.php b/API/Client/JSON.php
index e1de5b9..3d89041 100644
--- a/API/Client/JSON.php
+++ b/API/Client/JSON.php
@@ -3,6 +3,14 @@
 use Df\Core\Exception as DFE;
 // 2017-07-02
 final class JSON extends \Dfe\Dynamics365\API\Client {
+	/**
+	 * 2017-07-06
+	 * @override
+	 * @see \Df\API\Client::_construct()
+	 * @used-by \Df\API\Client::__construct()
+	 */
+	final protected function _construct() {parent::_construct(); $this->addFilterJsonDecode();}
+
 	/**
 	 * 2017-07-02
 	 * 2017-07-03
@@ -19,16 +27,6 @@ final class JSON extends \Dfe\Dynamics365\API\Client {
 	 */
 	protected function accept() {return 'json';}
 
-	/**
-	 * 2017-07-05
-	 * @override
-	 * @see \Df\API\Client::responseFilterC()
-	 * @used-by \Df\API\Client::p()
-	 * @used-by p()
-	 * @return string
-	 */
-	protected function responseFilterC() {return \Df\API\Response\Filter\JSON::class;}
-
 	/**
 	 * 2017-07-05
 	 * @see \Df\API\Client::responseValidatorC()
diff --git a/API/Validator/JSON.php b/API/Validator/JSON.php
index ddd7c99..055aa20 100644
--- a/API/Validator/JSON.php
+++ b/API/Validator/JSON.php
@@ -38,7 +38,7 @@ protected function rs() {
 		$e = dfa($this->r(), 'error');
 		// 2017-06-30 It correctly works even if the key does not exist in the array.
 		unset($e['innererror']['stacktrace']);
-		return df_json_encode_pretty($e);
+		return df_json_encode($e);
 	}
 
 	/**
diff --git a/T/TestCase.php b/T/TestCase.php
index a1d56ee..14ab027 100644
--- a/T/TestCase.php
+++ b/T/TestCase.php
@@ -14,7 +14,7 @@ abstract class TestCase extends \Df\Core\TestCase {
 	 * @used-by \Dfe\Dynamics365\T\Price::productpricelevels()
 	 * @param array(string => mixed) $r
 	 */
-	final protected function o(array $r) {echo df_json_encode_pretty($r);}
+	final protected function o(array $r) {echo df_json_encode($r);}
 
 	/**
 	 * 2017-07-01
diff --git a/composer.json b/composer.json
index d8139ae..e932f4d 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
 	"name": "mage2pro/dynamics365"
-	,"version": "0.2.0"
+	,"version": "0.2.1"
 	,"description": "The «Microsoft Dynamics 365» extension for Magento 2."
 	,"type": "magento2-module"
 	,"homepage": "https://mage2.pro/c/extensions/dynamics365"
@@ -11,7 +11,7 @@
 		"homepage": "https://mage2.pro/users/dmitry_fedyuk",
 		"role": "Developer"
 	}]
-	,"require": {"mage2pro/core": ">=2.7.39"}
+	,"require": {"mage2pro/core": ">=2.7.40"}
 	,"autoload": {"files": ["registration.php"], "psr-4": {"Dfe\\Dynamics365\\": ""}}
 	,"keywords": [
 		"CRM"