--- a/tests/symlink-long.at
+++ b/tests/symlink-long.at
@@ -27,7 +27,7 @@
 
 # len(dirname) > READBUFSIZE
 dirname=
-for i in {1..52}; do
+for i in $(seq -s \  52); do
     dirname="xxxxxxxxx/$dirname"
     mkdir "$dirname"
 done