diff --git a/surfvis/flagchi2.py b/surfvis/flagchi2.py
index 4eea981..b9064c9 100644
--- a/surfvis/flagchi2.py
+++ b/surfvis/flagchi2.py
@@ -111,5 +111,5 @@ def main():
                           columns=[options.fcol, 'FLAG_ROW'],
                           rechunk=True)
 
-    with Progressbar():
+    with ProgressBar():
         dask.compute(writes)