diff --git a/content/00_Download_Data.md b/content/00_Download_Data.md
index 12dab6c1..124dcf3c 100644
--- a/content/00_Download_Data.md
+++ b/content/00_Download_Data.md
@@ -23,4 +23,6 @@ cd ../data/ds006185
 datalad get -J5 sub-24053/ses-1/func/sub-24053_ses-1_task-rat_dir-PA_run-01_echo-*
 datalad get sub-24053/ses-1/func/sub-24053_ses-1_task-rat_dir-PA_run-01_part-mag_desc-brain_mask.nii.gz
 datalad get sub-24053/ses-1/func/sub-24053_ses-1_task-rat_dir-PA_run-01_part-mag_desc-confounds_timeseries.tsv
+datalad get sub-24053/ses-1/func/sub-24053_ses-1_task-rat_dir-PA_run-01_from-boldref_to-T1w_mode-image_desc-coreg_xfm.txt
+datalad get sub-24053/ses-1/anat/sub-24053_ses-1_rec-norm_desc-preproc_T1w.nii.gz
 ```
diff --git a/content/plot_approach_figures.md b/content/plot_approach_figures.md
index fe0c3434..33cc150d 100644
--- a/content/plot_approach_figures.md
+++ b/content/plot_approach_figures.md
@@ -35,6 +35,7 @@ from tedana.utils import make_adaptive_mask
 
 data_path = os.path.abspath('../data')
 
+func_dir = os.path.join(data_path, "ds006185/sub-24053/ses-1/func/")
 ted_dir = os.path.join(data_path, "tedana")
 ```
 
@@ -42,6 +43,9 @@ ted_dir = os.path.join(data_path, "tedana")
 ```{code-cell} ipython3
 :tags: [hide-cell]
 data = load_pafin(data_path)
+# load_pafin returns echo_times as a list; this chapter does array arithmetic on
+# it (e.g. -1 * echo_times), so coerce to an array once here.
+data['echo_times'] = np.asarray(data['echo_times'])
 
 # Background anatomical image
 anat_dir = os.path.join(data_path, "ds006185/sub-24053/ses-1/anat/")