diff --git a/redfish-core/lib/certificate_service.hpp b/redfish-core/lib/certificate_service.hpp
index 889f606..6d17a61 100644
--- a/redfish-core/lib/certificate_service.hpp
+++ b/redfish-core/lib/certificate_service.hpp
@@ -164,20 +164,22 @@
                                                    std::ofstream::trunc);
             out << certString;
             out.close();
-            BMCWEB_LOG_DEBUG << "Creating certificate file" << certificateFile;
+            BMCWEB_LOG_DEBUG << "Creating certificate file"
+                             << certificateFile.string();
         }
     }
     ~CertificateFile()
     {
         if (std::filesystem::exists(certDirectory))
         {
-            BMCWEB_LOG_DEBUG << "Removing certificate file" << certificateFile;
+            BMCWEB_LOG_DEBUG << "Removing certificate file"
+                             << certificateFile.string();
             std::error_code ec;
             std::filesystem::remove_all(certDirectory, ec);
             if (ec)
             {
                 BMCWEB_LOG_ERROR << "Failed to remove temp directory"
-                                 << certDirectory;
+                                 << certDirectory.string();
             }
         }
     }
diff --git a/redfish-core/lib/managers.hpp b/redfish-core/lib/managers.hpp
index acaa40a..b0e2507 100644
--- a/redfish-core/lib/managers.hpp
+++ b/redfish-core/lib/managers.hpp
@@ -1872,8 +1872,8 @@
                 return;
             }
 
-            BMCWEB_LOG_DEBUG
-                << "Setting firmware version " + firmwareId + " to priority 0.";
+            BMCWEB_LOG_DEBUG << "Setting firmware version " << firmwareId
+                             << " to priority 0.";
 
             // Only support Immediate
             // An addition could be a Redfish Setting like
diff --git a/redfish-core/lib/update_service.hpp b/redfish-core/lib/update_service.hpp
index 6c61e40..841463a 100644
--- a/redfish-core/lib/update_service.hpp
+++ b/redfish-core/lib/update_service.hpp
@@ -927,8 +927,8 @@
                     }
                     if (!found)
                     {
-                        BMCWEB_LOG_ERROR
-                            << "Input swID " + *swId + " not found!";
+                        BMCWEB_LOG_ERROR << "Input swID " << *swId
+                                         << " not found!";
                         messages::resourceMissingAtURI(
                             asyncResp->res,
                             crow::utility::urlFromPieces(