diff --git a/src/HttpErrors.h b/src/HttpErrors.h
index d1ff96e..b2209af 100644
--- a/src/HttpErrors.h
+++ b/src/HttpErrors.h
@@ -34,20 +34,20 @@ enum HttpError {
 /* Returned parser errors match this LUT. */
 static const std::string_view httpErrorResponses[] = {
     "", /* Zeroth place is no error so don't use it */
-    "HTTP/1.1 505 HTTP Version Not Supported\r\n\r\n<h1>HTTP Version Not Supported</h1><p>This server does not support HTTP/1.0.</p><hr><i>uWebSockets/20 Server</i>",
-    "HTTP/1.1 431 Request Header Fields Too Large\r\n\r\n<h1>Request Header Fields Too Large</h1><hr><i>uWebSockets/20 Server</i>",
-    "HTTP/1.1 400 Bad Request\r\n\r\n<h1>Bad Request</h1><hr><i>uWebSockets/20 Server</i>",
-    "HTTP/1.1 404 File Not Found\r\n\r\n<h1>File Not Found</h1><hr><i>uWebSockets/20 Server</i>"
+    "HTTP/1.1 505 HTTP Version Not Supported\r\nConnection: close\r\n\r\n<h1>HTTP Version Not Supported</h1><p>This server does not support HTTP/1.0.</p><hr><i>uWebSockets/20 Server</i>",
+    "HTTP/1.1 431 Request Header Fields Too Large\r\nConnection: close\r\n\r\n<h1>Request Header Fields Too Large</h1><hr><i>uWebSockets/20 Server</i>",
+    "HTTP/1.1 400 Bad Request\r\nConnection: close\r\n\r\n<h1>Bad Request</h1><hr><i>uWebSockets/20 Server</i>",
+    "HTTP/1.1 404 File Not Found\r\nConnection: close\r\n\r\n<h1>File Not Found</h1><hr><i>uWebSockets/20 Server</i>"
 };
 
 #else
 /* Anonymized pages */
 static const std::string_view httpErrorResponses[] = {
     "", /* Zeroth place is no error so don't use it */
-    "HTTP/1.1 505 HTTP Version Not Supported\r\n\r\n",
-    "HTTP/1.1 431 Request Header Fields Too Large\r\n\r\n",
-    "HTTP/1.1 400 Bad Request\r\n\r\n",
-    "HTTP/1.1 404 File Not Found\r\n\r\n"
+    "HTTP/1.1 505 HTTP Version Not Supported\r\nConnection: close\r\n\r\n",
+    "HTTP/1.1 431 Request Header Fields Too Large\r\nConnection: close\r\n\r\n",
+    "HTTP/1.1 400 Bad Request\r\nConnection: close\r\n\r\n",
+    "HTTP/1.1 404 File Not Found\r\nConnection: close\r\n\r\n"
 };
 #endif