diff --git a/test/tmp_install.sh b/test/tmp_install.sh
index a67febf..8e79030 100755
--- a/test/tmp_install.sh
+++ b/test/tmp_install.sh
@@ -4,7 +4,7 @@ set -u
 source_dir=$(cd $(dirname $0)/.. && pwd)
 target_dir=$1
 
-rsync -a --delete --delete-excluded --exclude .git --exclude '*~' --exclude '*.pyc' --exclude '__pycache__' --exclude '*.cache' $source_dir/ $target_dir/
+rsync -a --delete --delete-excluded --exclude .git --exclude '*~' --exclude '*.py[cod]' --exclude '__pycache__' --exclude '*.cache' $source_dir/ $target_dir/
 mkdir -p $target_dir/.cache
 chmod -R a+r $target_dir
 chmod a+wrx $(find $target_dir -type d)