diff --git a/src/Network/CurlResult.php b/src/Network/CurlResult.php
index 1c74634db..9d93c8bd8 100644
--- a/src/Network/CurlResult.php
+++ b/src/Network/CurlResult.php
@@ -37,7 +37,7 @@ class CurlResult implements IHTTPResult
 	private $returnCode;
 
 	/**
-	 * @var string the content type of the Curl call
+	 * @var string[] the content type of the Curl call
 	 */
 	private $contentType;
 
@@ -223,9 +223,9 @@ class CurlResult implements IHTTPResult
 	private function checkInfo()
 	{
 		if (isset($this->info['content_type'])) {
-			$this->contentType = $this->info['content_type'];
+			$this->contentType = [$this->info['content_type']];
 		} else {
-			$this->contentType = '';
+			$this->contentType = [];
 		}
 	}
 
diff --git a/tests/src/Network/CurlResultTest.php b/tests/src/Network/CurlResultTest.php
index c28dc5f1b..19fc8c3ec 100644
--- a/tests/src/Network/CurlResultTest.php
+++ b/tests/src/Network/CurlResultTest.php
@@ -68,7 +68,7 @@ class CurlResultTest extends TestCase
 		self::assertFalse($curlResult->isRedirectUrl());
 		self::assertSame($headerArray, $curlResult->getHeaders());
 		self::assertSame($body, $curlResult->getBody());
-		self::assertSame('text/html; charset=utf-8', $curlResult->getContentType());
+		self::assertSame(['text/html; charset=utf-8'], $curlResult->getContentType());
 		self::assertSame('https://test.local', $curlResult->getUrl());
 		self::assertSame('https://test.local', $curlResult->getRedirectUrl());
 	}
@@ -97,7 +97,7 @@ class CurlResultTest extends TestCase
 		self::assertTrue($curlResult->isRedirectUrl());
 		self::assertSame($headerArray, $curlResult->getHeaders());
 		self::assertSame($body, $curlResult->getBody());
-		self::assertSame('text/html; charset=utf-8', $curlResult->getContentType());
+		self::assertSame(['text/html; charset=utf-8'], $curlResult->getContentType());
 		self::assertSame('https://test.local/test/it', $curlResult->getUrl());
 		self::assertSame('https://test.other/test/it', $curlResult->getRedirectUrl());
 	}
@@ -124,7 +124,7 @@ class CurlResultTest extends TestCase
 		self::assertFalse($curlResult->isRedirectUrl());
 		self::assertSame($headerArray, $curlResult->getHeaders());
 		self::assertSame($body, $curlResult->getBody());
-		self::assertSame('text/html; charset=utf-8', $curlResult->getContentType());
+		self::assertSame(['text/html; charset=utf-8'], $curlResult->getContentType());
 		self::assertSame('https://test.local/test/it', $curlResult->getRedirectUrl());
 		self::assertSame('Tested error', $curlResult->getError());
 	}
@@ -152,7 +152,7 @@ class CurlResultTest extends TestCase
 		self::assertTrue($curlResult->isRedirectUrl());
 		self::assertSame($headerArray, $curlResult->getHeaders());
 		self::assertSame($body, $curlResult->getBody());
-		self::assertSame('text/html; charset=utf-8', $curlResult->getContentType());
+		self::assertSame(['text/html; charset=utf-8'], $curlResult->getContentType());
 		self::assertSame('https://test.local/test/it?key=value', $curlResult->getUrl());
 		self::assertSame('https://test.other/some/?key=value', $curlResult->getRedirectUrl());
 	}