diff --git a/app.py b/app.py
index c6b4c86..d4a07f0 100644
--- a/app.py
+++ b/app.py
@@ -94,7 +94,11 @@ async def pick_file() -> None:
     ELM['filename'] = filename
     # see timer below, but still here active b/c the time might be inactive
     ui.timer(0, lambda: update_data(), once=True)
-    ELM['label_file'].set_text(ELM['label_file_fmt'].format(filename=os.path.basename(filename)))
+
+    if filename is not None:
+      filename = os.path.relpath(filename, ELM['filedir'])
+      # filename = os.path.basename(filename)
+    ELM['label_file'].set_text(ELM['label_file_fmt'].format(filename=filename))
 
 def get_data(filename=ELM['filename']):
   data = None
@@ -228,9 +232,10 @@ def index():
     ).bind_value(app.storage.user, 'dark_mode').props('icon="dark_mode"')
 
   with ui.row():
-    filename = None
-    if ELM['filename'] is not None:
-      filename = os.path.basename(ELM['filename'])
+    filename = ELM['filename']
+    if filename is not None:
+      filename = os.path.relpath(filename, ELM['filedir'])
+      # filename = os.path.basename(filename)
     ELM['label_file'] = ui.label(ELM['label_file_fmt'].format(filename=filename))
     ELM['label_data_len'] = ui.label(ELM['label_data_len_fmt'].format(num=0, numa=0))
     ELM['label_data_temp'] = ui.label(ELM['label_data_temp_fmt'].format(min=0, max=0))