diff --git a/RecrownedAthenaeum.ConsoleTools/NinePatchTools/NinePatchCommand.cs b/RecrownedAthenaeum.ConsoleTools/NinePatchTools/NinePatchCommand.cs
index 10fb171..d07960b 100644
--- a/RecrownedAthenaeum.ConsoleTools/NinePatchTools/NinePatchCommand.cs
+++ b/RecrownedAthenaeum.ConsoleTools/NinePatchTools/NinePatchCommand.cs
@@ -41,7 +41,7 @@ namespace RecrownedAthenaeum.Tools.NinePatchTools
             NinePatchData npData = new NinePatchData(Path.GetFileName(imagePath), leftBound, rightBound, bottomBound, topBound);
             string serialized = JsonConvert.SerializeObject(npData, Formatting.Indented);
 
-            using (StringWriter stringWriter = new StringWriter())
+            using (StreamWriter stringWriter = new StreamWriter(outPath + ".9p"))
             {
                 stringWriter.WriteLine(serialized);
             }