diff --git a/scripts/fio_tests_configs/io_task_test.cfg b/scripts/fio_tests_configs/io_task_test.cfg
index 4d68493..bfb2d96 100644
--- a/scripts/fio_tests_configs/io_task_test.cfg
+++ b/scripts/fio_tests_configs/io_task_test.cfg
@@ -5,7 +5,7 @@
 filename={FILENAME}
 buffered=0
 iodepth=1
-size=1000Mb
+size=1000m
 time_based
 RUNTIME=10