diff --git a/examples/plot_spm_auditory.py b/examples/plot_spm_auditory.py
index 4fa173b9..b31bdcbe 100644
--- a/examples/plot_spm_auditory.py
+++ b/examples/plot_spm_auditory.py
@@ -6,7 +6,6 @@
 """
 
 import os
-import os.path as op
 import numpy as np
 import matplotlib.pyplot as plt
 import nibabel
@@ -20,9 +19,10 @@
 
 # fetch spm auditory data
 subject_data = fetch_spm_auditory()
-dataset_dir = op.dirname(op.dirname(op.dirname(subject_data.anat)))
+dataset_dir = \
+    os.path.dirname(os.path.dirname(os.path.dirname(subject_data.anat)))
 output_dir = 'results'
-if not op.exists(output_dir):
+if not os.path.exists(output_dir):
     os.mkdir(output_dir)
 
 # construct experimental paradigm
diff --git a/examples/plot_spm_multimodal_faces.py b/examples/plot_spm_multimodal_faces.py
index f87dfc9b..54709174 100755
--- a/examples/plot_spm_multimodal_faces.py
+++ b/examples/plot_spm_multimodal_faces.py
@@ -63,7 +63,7 @@
     paradigm = DataFrame({'name': conditions, 'onset': onsets})
 
     # build design matrix
-    frame_times = np.linspace(0, (n_scans - 1) * tr, n_scans)
+    frame_times = np.arange(n_scans) * tr
     design_matrix = make_design_matrix(
         frame_times, paradigm, hrf_model=hrf_model, drift_model=drift_model,
         period_cut=period_cut)