diff --git a/src/ssn/extractFileStream.ts b/src/ssn/extractFileStream.ts
index 04f7f1c..ad68e7d 100644
--- a/src/ssn/extractFileStream.ts
+++ b/src/ssn/extractFileStream.ts
@@ -18,7 +18,7 @@ export default async function extractFileStream(file: ISsnFileEntry, inputStream
     const decryptTransform = decryptStream(file.decryptionKeys);
     curStream = curStream.pipe(decryptTransform);
     //skip encryption header
-    readBytesFromStream(curStream, 12);
+    await readBytesFromStream(curStream, 12);
   }
 
   if (!skipDecompression) {