diff --git a/src/nhttpd/yhttpd_core/yhook.cpp b/src/nhttpd/yhttpd_core/yhook.cpp
index 94338b758..964e9be33 100644
--- a/src/nhttpd/yhttpd_core/yhook.cpp
+++ b/src/nhttpd/yhttpd_core/yhook.cpp
@@ -280,7 +280,7 @@ std::string CyhookHandler::BuildHeader(bool cache) {
 	switch (httpStatus) {
 	case HTTP_UNAUTHORIZED:
 		result += "WWW-Authenticate: Basic realm=\"";
-		result += AUTH_NAME_MSG "\r\n";
+		result += AUTH_NAME_MSG "\"\r\n";
 		break;
 
 	case HTTP_MOVED_TEMPORARILY: