diff --git a/src/autobigs/engine/reading.py b/src/autobigs/engine/reading.py
index 9949da4..61e998e 100644
--- a/src/autobigs/engine/reading.py
+++ b/src/autobigs/engine/reading.py
@@ -1,5 +1,6 @@
 import asyncio
 from io import TextIOWrapper
+from os import path
 from typing import Any, AsyncGenerator, Iterable, Union
 from Bio import SeqIO
 
@@ -9,7 +10,7 @@ async def read_fasta(handle: Union[str, TextIOWrapper]) -> Iterable[NamedString]
     fasta_sequences = asyncio.to_thread(SeqIO.parse, handle=handle, format="fasta")
     results = []
     for fasta_sequence in await fasta_sequences:
-        results.append(NamedString(fasta_sequence.id, str(fasta_sequence.seq)))
+        results.append(NamedString("{0}:{1}".format(path.basename(handle.name if isinstance(handle, TextIOWrapper) else handle), fasta_sequence.id), str(fasta_sequence.seq)))
     return results
 
 async def read_multiple_fastas(handles: Iterable[Union[str, TextIOWrapper]]) -> AsyncGenerator[Iterable[NamedString], Any]: