diff --git a/src/utils/tar.browser.ts b/src/utils/tar.browser.ts
index d7c2d57e..9234095e 100644
--- a/src/utils/tar.browser.ts
+++ b/src/utils/tar.browser.ts
@@ -13,6 +13,9 @@ export class TarStream {
   }
 
   beginFile(path: string, size: number) {
+    if (path.length > 100) {
+      throw new Error(`File name too long: ${path}`)
+    }
     const header = createHeader(path, size)
     this.pieces.push(header)
     this.currentFileSize = 0
diff --git a/src/utils/tar.ts b/src/utils/tar.ts
index 4602b4cf..de9165d4 100644
--- a/src/utils/tar.ts
+++ b/src/utils/tar.ts
@@ -5,6 +5,9 @@ export class TarStream {
   currentFileSize = 0
 
   beginFile(path: string, size: number) {
+    if (path.length > 100) {
+      throw new Error(`File name too long: ${path}`)
+    }
     const header = createHeader(path, size)
     this.output.write(header)
     this.currentFileSize = 0