diff --git a/stand.py b/stand.py
index b4c5ff9..b73b333 100755
--- a/stand.py
+++ b/stand.py
@@ -52,11 +52,10 @@ def update_adb(evt):
     pgroup = evt.args["context"]["pgroup"]
     index = evt.args["data"]["index"]
     index = datetime.fromisoformat(index) # nicegui converts datetime to str
-    df = lib.read(pgroup, date_range=[index]).data
-
     col_id = evt.args["colId"]
     new_val = evt.args["newValue"]
 
+    df = lib.read(pgroup, date_range=[index]).data
     df.at[index, col_id] = new_val
     lib.update(pgroup, df)