diff --git a/examples/algorithms/mixed_effects.py b/examples/algorithms/mixed_effects.py
old mode 100644
new mode 100755
diff --git a/examples/core/parcel_generator.py b/examples/core/parcel_generator.py
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diff --git a/examples/labs/need_data/glm_beta_and_variance.py b/examples/labs/need_data/glm_beta_and_variance.py
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diff --git a/examples/labs/need_data/one_sample_t_test.py b/examples/labs/need_data/one_sample_t_test.py
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diff --git a/examples/labs/need_data/tmin_statistic.py b/examples/labs/need_data/tmin_statistic.py
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diff --git a/examples/labs/need_data/viz3d.py b/examples/labs/need_data/viz3d.py
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diff --git a/tools/fix_longtable.py b/tools/fix_longtable.py
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diff --git a/tools/gitwash_dumper.py b/tools/gitwash_dumper.py
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diff --git a/tools/perlpie b/tools/perlpie
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index 0303cf906..d6b0e3b10
--- a/tools/perlpie
+++ b/tools/perlpie
@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
 """Utility script for performing global search and replace with `perl -p ie`
 """