diff --git a/techrec/forge.py b/techrec/forge.py
index 4e621b6..d0ca94b 100644
--- a/techrec/forge.py
+++ b/techrec/forge.py
@@ -121,11 +121,10 @@ async def create_mp3(
     intervals = []
     for begin, start_cut, end_cut in get_files_and_intervals(start, end):
         try:
-            file = await get_timefile(begin)
+            filename = await get_timefile(begin)
         except Exception as e:
-            logger.error("Error while retrieving file: %s", e)
-        else:
-            intervals.append((file, start_cut, end_cut))
+            raise ValueError("Error while retrieving file: %s" % e) from e
+        intervals.append((filename, start_cut, end_cut))
     if os.path.exists(outfile):
         raise OSError("file '%s' already exists" % outfile)
     for path, _s, _e in intervals: