diff --git a/src/Core/IdentityServer/ResourceOwnerPasswordValidator.cs b/src/Core/IdentityServer/ResourceOwnerPasswordValidator.cs
index cb206d0e7c..1b8667eeaa 100644
--- a/src/Core/IdentityServer/ResourceOwnerPasswordValidator.cs
+++ b/src/Core/IdentityServer/ResourceOwnerPasswordValidator.cs
@@ -222,8 +222,9 @@ namespace Bit.Core.IdentityServer
 
             if(_globalSettings.SelfHosted)
             {
-                _logger.LogWarning(Constants.BypassFiltersEventId, "Failed login attempt{0}{1}",
-                    twoFactorRequest ? ", 2FA invalid." : ".", $" {_currentContext.IpAddress}");
+                _logger.LogWarning(Constants.BypassFiltersEventId,
+                    string.Format("Failed login attempt{0}{1}", twoFactorRequest ? ", 2FA invalid." : ".",
+                        $" {_currentContext.IpAddress}"));
             }
             await Task.Delay(2000); // Delay for brute force.
             context.Result = new GrantValidationResult(TokenRequestErrors.InvalidGrant,
diff --git a/src/Core/Utilities/LoggerFactoryExtensions.cs b/src/Core/Utilities/LoggerFactoryExtensions.cs
index b1fe9cb733..f207d23bb8 100644
--- a/src/Core/Utilities/LoggerFactoryExtensions.cs
+++ b/src/Core/Utilities/LoggerFactoryExtensions.cs
@@ -79,9 +79,8 @@ namespace Bit.Core.Utilities
             {
                 if(globalSettings.LogRollBySizeLimit.HasValue)
                 {
-                    config.WriteTo
-                        .RollingFile($"{globalSettings.LogDirectory}/{globalSettings.ProjectName}/log.txt",
-                            fileSizeLimitBytes: globalSettings.LogRollBySizeLimit);
+                    config.WriteTo.File($"{globalSettings.LogDirectory}/{globalSettings.ProjectName}/log.txt",
+                        rollOnFileSizeLimit: true, fileSizeLimitBytes: globalSettings.LogRollBySizeLimit);
                 }
                 else
                 {