diff --git a/source3/script/tests/test_pthreadpool.sh b/source3/script/tests/test_pthreadpool.sh
index b1c7c6da11c..b3d24f79a1a 100755
--- a/source3/script/tests/test_pthreadpool.sh
+++ b/source3/script/tests/test_pthreadpool.sh
@@ -1,20 +1,20 @@
 #!/bin/sh
 
-incdir=`dirname $0`/../../../testprogs/blackbox
+incdir=$(dirname $0)/../../../testprogs/blackbox
 . $incdir/subunit.sh
 
-if [ ! -x $BINDIR/pthreadpooltest ] ; then
-    # Some machines don't have /bin/true, simulate it
-    cat >$BINDIR/pthreadpooltest <<EOF
+if [ ! -x $BINDIR/pthreadpooltest ]; then
+	# Some machines don't have /bin/true, simulate it
+	cat >$BINDIR/pthreadpooltest <<EOF
 #!/bin/sh
 exit 0
 EOF
-    chmod +x $BINDIR/pthreadpooltest
+	chmod +x $BINDIR/pthreadpooltest
 fi
 
 failed=0
 
 testit "pthreadpool" $VALGRIND $BINDIR/pthreadpooltest ||
-	failed=`expr $failed + 1`
+	failed=$(expr $failed + 1)
 
 testok $0 $failed