diff --git a/tests/integration/features/bootstrap/FeatureContext.php b/tests/integration/features/bootstrap/FeatureContext.php
index 4c3591691..b2403c2e9 100644
--- a/tests/integration/features/bootstrap/FeatureContext.php
+++ b/tests/integration/features/bootstrap/FeatureContext.php
@@ -214,7 +214,10 @@ public function iSendAPostRequestToWithTheFollowingData($url,
 	public function theResponseShouldBeASamlRedirectPageThatGetsSubmitted() {
 		$responseBody = $this->response->getBody();
 		$domDocument = new DOMDocument();
-		$domDocument->loadHTML($responseBody);
+		$loaded = $domDocument->loadHTML($responseBody);
+		if (!$loaded) {
+			error_log(sprintf('Could not load expected HTML document: %s', $responseBody));
+		}
 		$xpath = new DOMXpath($domDocument);
 		$postData = [];
 		$inputElements = $xpath->query('//input');