diff --git a/test_bluesky.py b/test_bluesky.py
index e3c4217..576a606 100644
--- a/test_bluesky.py
+++ b/test_bluesky.py
@@ -158,6 +158,7 @@ def test_scan_with_standard_callbacks(self) -> None:
             fit=Linear().fit(),
             human_readable_file_output_dir=Path(LOG_FOLDER) / "output_files",
             live_fit_logger_output_dir=Path(LOG_FOLDER) / "fitting",
+            plot_png_output_dir=Path(LOG_FOLDER) / "pngs",
         )
 
         @icc