diff --git a/pycromanager/acquisition/acquisition_superclass.py b/pycromanager/acquisition/acquisition_superclass.py
index c6a0b670..720c08e5 100644
--- a/pycromanager/acquisition/acquisition_superclass.py
+++ b/pycromanager/acquisition/acquisition_superclass.py
@@ -271,6 +271,7 @@ def __exit__(self, exc_type, exc_val, exc_tb):
         self.mark_finished()
         # now wait on it to finish
         self.await_completion()
+        self.get_dataset().close()
 
 
 def _validate_acq_events(events: dict or list):