diff --git a/test/ipfs-test-lib.sh b/test/ipfs-test-lib.sh
index 26821c14a..e483817e1 100644
--- a/test/ipfs-test-lib.sh
+++ b/test/ipfs-test-lib.sh
@@ -22,3 +22,16 @@ test_sort_cmp() {
 	sort "$2" >"$2_sorted" &&
 	test_cmp "$1_sorted" "$2_sorted"
 }
+
+# Depending on GNU seq availability is not nice.
+# Git also has test_seq but it uses Perl.
+test_seq() {
+	test "$1" -le "$2" || return
+	i="$1"
+	j="$2"
+	while test "$i" -le "$j"
+	do
+		echo "$i"
+		i=$(expr "$i" + 1)
+	done
+}
diff --git a/test/sharness/lib/test-lib.sh b/test/sharness/lib/test-lib.sh
index 234477172..d58fef6f0 100644
--- a/test/sharness/lib/test-lib.sh
+++ b/test/sharness/lib/test-lib.sh
@@ -52,7 +52,7 @@ fi
 . ../../ipfs-test-lib.sh
 
 test_cmp_repeat_10_sec() {
-	for i in `seq 1 100`
+	for i in $(test_seq 1 100)
 	do
 		test_cmp "$1" "$2" >/dev/null && return
 		sleep 0.1
@@ -245,7 +245,7 @@ test_launch_ipfs_daemon_and_mount() {
 test_kill_repeat_10_sec() {
 	# try to shut down once + wait for graceful exit
 	kill $1
-	for i in `seq 1 100`
+	for i in $(test_seq 1 100)
 	do
 		sleep 0.1
 		! kill -0 $1 2>/dev/null && return