1 files changed, 3 insertions, 3 deletions
diff --git a/testsuite/md5sum.tests b/testsuite/md5sum.tests
index 1068b083f..6c75b6d1c 100755
--- a/testsuite/md5sum.tests
+++ b/testsuite/md5sum.tests
@@ -30,13 +30,13 @@ result=`(
 n=0
 while test $n -le 999; do
 	echo "$text" | head -c $n | "$sum"
-	: $((n++))
+	n=$(($n+1))
 done | "$sum"
 )`
 
 if test x"$result" = x"$expected  -"; then
-    echo "PASS: $sum"
-    exit 0
+	echo "PASS: $sum"
+	exit 0
 fi
 
 echo "FAIL: $sum (r:$result exp:$expected)"