diff --git a/bin/infection-config.php b/bin/infection-config.php
index 2697a32..3114b55 100644
--- a/bin/infection-config.php
+++ b/bin/infection-config.php
@@ -27,6 +27,6 @@
 	$decoded->timeout = (int) $timeout;
 }
 
-echo json_encode($decoded);
+echo json_encode($decoded, JSON_PRETTY_PRINT);
 
 exit(0);
diff --git a/tests/phpt/infection-config-default.phpt b/tests/phpt/infection-config-default.phpt
index 78d75bf..cd698df 100644
--- a/tests/phpt/infection-config-default.phpt
+++ b/tests/phpt/infection-config-default.phpt
@@ -3,23 +3,23 @@ infection-config.php renders proper json defaults
 --FILE--
 <?php declare(strict_types=1);
 $bin = PHP_BINARY . ' '. __DIR__.'/../../bin/infection-config.php';
-echo shell_exec($bin ."| jq");
+echo shell_exec($bin);
 --EXPECT--
 {
-  "$schema": "vendor/infection/infection/resources/schema.json",
-  "timeout": 30,
-  "source": {
-    "directories": [
-      "src"
-    ]
-  },
-  "staticAnalysisTool": "phpstan",
-  "logs": {
-    "text": "tmp/infection.log"
-  },
-  "mutators": {
-    "@default": false,
-    "PHPStan\\Infection\\TrinaryLogicMutator": true
-  },
-  "bootstrap": "build-infection/vendor/autoload.php"
+    "$schema": "vendor\/infection\/infection\/resources\/schema.json",
+    "timeout": 30,
+    "source": {
+        "directories": [
+            "src"
+        ]
+    },
+    "staticAnalysisTool": "phpstan",
+    "logs": {
+        "text": "tmp\/infection.log"
+    },
+    "mutators": {
+        "@default": false,
+        "PHPStan\\Infection\\TrinaryLogicMutator": true
+    },
+    "bootstrap": "build-infection\/vendor\/autoload.php"
 }
diff --git a/tests/phpt/infection-config.phpt b/tests/phpt/infection-config.phpt
index f9de77a..763087b 100644
--- a/tests/phpt/infection-config.phpt
+++ b/tests/phpt/infection-config.phpt
@@ -3,25 +3,25 @@ infection-config.php renders proper json
 --FILE--
 <?php declare(strict_types=1);
 $bin = PHP_BINARY . ' '. __DIR__.'/../../bin/infection-config.php';
-echo shell_exec($bin." --source-directory='more/files/' --timeout=180 --mutator-class='My\Class' | jq");
+echo shell_exec($bin." --source-directory='more/files/' --timeout=180 --mutator-class='My\Class'");
 --EXPECT--
 {
-  "$schema": "vendor/infection/infection/resources/schema.json",
-  "timeout": 180,
-  "source": {
-    "directories": [
-      "src",
-      "more/files/"
-    ]
-  },
-  "staticAnalysisTool": "phpstan",
-  "logs": {
-    "text": "tmp/infection.log"
-  },
-  "mutators": {
-    "@default": false,
-    "PHPStan\\Infection\\TrinaryLogicMutator": true,
-    "My\\Class": true
-  },
-  "bootstrap": "build-infection/vendor/autoload.php"
+    "$schema": "vendor\/infection\/infection\/resources\/schema.json",
+    "timeout": 180,
+    "source": {
+        "directories": [
+            "src",
+            "more\/files\/"
+        ]
+    },
+    "staticAnalysisTool": "phpstan",
+    "logs": {
+        "text": "tmp\/infection.log"
+    },
+    "mutators": {
+        "@default": false,
+        "PHPStan\\Infection\\TrinaryLogicMutator": true,
+        "My\\Class": true
+    },
+    "bootstrap": "build-infection\/vendor\/autoload.php"
 }