diff --git a/src/Core/Logger/Type/AbstractLogger.php b/src/Core/Logger/Type/AbstractLogger.php
index e26f1705d..e7e711d7e 100644
--- a/src/Core/Logger/Type/AbstractLogger.php
+++ b/src/Core/Logger/Type/AbstractLogger.php
@@ -129,7 +129,7 @@ abstract class AbstractLogger implements LoggerInterface
 			}
 		}
 
-		return @json_encode($output);
+		return @json_encode($output, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
 	}
 
 	/**
diff --git a/tests/src/Core/Logger/AbstractLoggerTest.php b/tests/src/Core/Logger/AbstractLoggerTest.php
index 2734158b5..d85e754c3 100644
--- a/tests/src/Core/Logger/AbstractLoggerTest.php
+++ b/tests/src/Core/Logger/AbstractLoggerTest.php
@@ -157,7 +157,7 @@ abstract class AbstractLoggerTest extends MockedTest
 
 		self::assertLogline($text);
 
-		self::assertStringContainsString(@json_encode($context), $text);
+		self::assertStringContainsString(@json_encode($context, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), $text);
 	}
 
 	/**
@@ -176,7 +176,7 @@ abstract class AbstractLoggerTest extends MockedTest
 
 		self::assertLogline($text);
 
-		self::assertStringContainsString(@json_encode($assertion), $this->getContent());
+		self::assertStringContainsString(@json_encode($assertion, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), $this->getContent());
 	}
 
 	public function testNoObjectHandling()