diff --git a/test.sh b/test.sh
index 3ca43ba..25d651a 100644
--- a/test.sh
+++ b/test.sh
@@ -26,6 +26,6 @@ cd test_scratch
 ../miniz_tester -v -b -r a linux-4.8.11
 ../miniz_tester -v -a a linux-4.8.11
 
-mkdir large_file
+mkdir -p large_file
 truncate -s 5G large_file/lf
 ../miniz_tester -v -a a large_file