diff --git a/system/src/Grav/Common/GPM/Response.php b/system/src/Grav/Common/GPM/Response.php
index 4575b6f71..e6f5df950 100644
--- a/system/src/Grav/Common/GPM/Response.php
+++ b/system/src/Grav/Common/GPM/Response.php
@@ -307,7 +307,7 @@ class Response
         $errno = curl_errno($ch);
 
         if ($errno) {
-            $error_message = curl_strerror($errno);
+            $error_message = curl_strerror($errno) . "\n" . curl_error($ch);
             throw new \RuntimeException("cURL error ({$errno}):\n {$error_message}");
         }