diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index df52dd92..92e2fa06 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -280,11 +280,6 @@ parameters:
 			count: 1
 			path: src/Tracing/HttpClient/AbstractTraceableResponse.php
 
-		-
-			message: "#^Method Sentry\\\\SentryBundle\\\\Tracing\\\\HttpClient\\\\AbstractTraceableResponse::stream\\(\\) has parameter \\$responses with no value type specified in iterable type iterable.$#"
-			count: 1
-			path: src/Tracing/HttpClient/AbstractTraceableResponse.php
-
 		-
 			message: "#^Method Sentry\\\\SentryBundle\\\\Tracing\\\\HttpClient\\\\TraceableHttpClientForV6::withOptions\\(\\) has parameter \\$options with no value type specified in iterable type array.$#"
 			count: 1
diff --git a/src/Tracing/HttpClient/AbstractTraceableHttpClient.php b/src/Tracing/HttpClient/AbstractTraceableHttpClient.php
index 9dd104ef..3ad27ad4 100644
--- a/src/Tracing/HttpClient/AbstractTraceableHttpClient.php
+++ b/src/Tracing/HttpClient/AbstractTraceableHttpClient.php
@@ -72,6 +72,8 @@ public function stream($responses, float $timeout = null): ResponseStreamInterfa
     {
         if ($responses instanceof AbstractTraceableResponse) {
             $responses = [$responses];
+        } elseif (!is_iterable($responses)) {
+            throw new \TypeError(sprintf('"%s()" expects parameter 1 to be an iterable of TraceableResponse objects, "%s" given.', __METHOD__, get_debug_type($responses)));
         }
 
         return new ResponseStream(AbstractTraceableResponse::stream($this->client, $responses, $timeout));
diff --git a/tests/Tracing/HttpClient/TraceableHttpClientTest.php b/tests/Tracing/HttpClient/TraceableHttpClientTest.php
index ed165254..069d8682 100644
--- a/tests/Tracing/HttpClient/TraceableHttpClientTest.php
+++ b/tests/Tracing/HttpClient/TraceableHttpClientTest.php
@@ -87,6 +87,7 @@ public function testRequest(): void
 
         $response->getContent(false);
 
+        $this->assertNotNull($transaction->getSpanRecorder());
         $spans = $transaction->getSpanRecorder()->getSpans();
         $this->assertCount(2, $spans);
         $this->assertNotNull($spans[1]->getEndTimestamp());
@@ -118,6 +119,7 @@ public function testStream(): void
             $chunks[] = $chunk->getContent();
         }
 
+        $this->assertNotNull($transaction->getSpanRecorder());
         $spans = $transaction->getSpanRecorder()->getSpans();
         $expectedTags = [
             'http.method' => 'GET',