diff --git a/runtests.sh b/runtests.sh
index 9d178a78..e5561836 100755
--- a/runtests.sh
+++ b/runtests.sh
@@ -7,4 +7,4 @@ case $arg in
 *) args+=( "$arg" )
 esac
 done
-PYTHONPATH=`pwd`/src:`pwd`/test exec python3 -m pytest -vv $cov "${args[@]}"
+PYTHONPATH=$PWD/src:$PWD/test exec python3 -m pytest -vv $cov "${args[@]}"