diff --git a/README.md b/README.md
index 0460255..cc5d0bd 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 A user interface to make the use of [whisper](https://github.com/openai/whisper) very easy. 
 
+WhisperUI returnes .srt files (i.e. time-stamped translation / transcription).
+
 # How to use it
 
 Create the docker image:
diff --git a/app.py b/app.py
index b5d1ae0..d2ab1e2 100644
--- a/app.py
+++ b/app.py
@@ -9,8 +9,8 @@
 import io
 
 UPLOAD_FOLDER = tempfile.mkdtemp(dir=os.getcwd())
-OUTPUT_TRANSLATION_OBJECT = "translation.txt"
-OUTPUT_TRANSCRIPTION_OBJECT = "transcription.txt"
+OUTPUT_TRANSLATION_OBJECT = "translation.srt"
+OUTPUT_TRANSCRIPTION_OBJECT = "transcription.srt"
 
 # Define instructions and error messages
 instr = [