diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 5464dd9..169881e 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartarchive',
-  version: '4.0.34',
+  version: '4.0.35',
   description: 'A library for working with archive files, providing utilities for compressing and decompressing data.'
 }
diff --git a/ts/classes.tartools.ts b/ts/classes.tartools.ts
index 2119300..f14311a 100644
--- a/ts/classes.tartools.ts
+++ b/ts/classes.tartools.ts
@@ -21,12 +21,17 @@ export class TarTools {
     }
   ): Promise<void> {
     return new Promise<void>(async (resolve, reject) => {
-      let fileName =
-        optionsArg.fileName || optionsArg.content instanceof plugins.smartfile.SmartFile
-          ? (optionsArg.content as plugins.smartfile.SmartFile).relative
-          : null || optionsArg.content instanceof plugins.smartfile.StreamFile
-          ? (optionsArg.content as plugins.smartfile.StreamFile).relativeFilePath
-          : null || optionsArg.filePath;
+      let fileName: string | null = null;
+
+      if (optionsArg.fileName) {
+        fileName = optionsArg.fileName;
+      } else if (optionsArg.content instanceof plugins.smartfile.SmartFile) {
+        fileName = (optionsArg.content as plugins.smartfile.SmartFile).relative;
+      } else if (optionsArg.content instanceof plugins.smartfile.StreamFile) {
+        fileName = (optionsArg.content as plugins.smartfile.StreamFile).relativeFilePath;
+      } else if (optionsArg.filePath) {
+        fileName = optionsArg.filePath;
+      }
 
       /**
        * contentByteLength is used to set the size of the entry in the tar file