diff --git a/src/admin_filter.cpp b/src/admin_filter.cpp
index a72d424..efc0084 100644
--- a/src/admin_filter.cpp
+++ b/src/admin_filter.cpp
@@ -33,7 +33,7 @@ void AdminFilter::doFilter(const HttpRequestPtr &req,
             }
         }
     }
-    auto resp = HttpResponse::newHttpJsonResponse("Invalid Credentials");
+    const auto &resp = HttpResponse::newHttpJsonResponse("Invalid Credentials");
     resp->setStatusCode(k401Unauthorized);
     fcb(resp);
 }
\ No newline at end of file
diff --git a/src/user_filter.cpp b/src/user_filter.cpp
index 71392bb..c6e6a58 100644
--- a/src/user_filter.cpp
+++ b/src/user_filter.cpp
@@ -30,7 +30,7 @@ void UserFilter::doFilter(const HttpRequestPtr &req,
             }
         }
     }
-    auto resp = HttpResponse::newHttpJsonResponse("Invalid Credentials");
+    const auto &resp = HttpResponse::newHttpJsonResponse("Invalid Credentials");
     resp->setStatusCode(k401Unauthorized);
     fcb(resp);
 }
\ No newline at end of file