diff --git a/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/Templates/RemoveUnnecessaryPortsStep.cs b/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/Templates/RemoveUnnecessaryPortsStep.cs
index 63d8443a5c..2c232bcecf 100644
--- a/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/Templates/RemoveUnnecessaryPortsStep.cs
+++ b/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/Templates/RemoveUnnecessaryPortsStep.cs
@@ -63,8 +63,8 @@ public class RemoveUnnecessaryPortsStep : ProjectBuildPipelineStep
             
             newlines.Add(newLine);
         }
-        
-        httpApiHostAppSettings.SetContent(string.Join(Environment.NewLine, newlines));
+
+        httpApiHostAppSettings.SetLines(newlines);
     }
 
     private static void RemoveUnnecessaryDbMigratorClients(ProjectBuildContext context)