diff --git a/configs-examples/ceph_raw.yaml b/configs-examples/ceph_raw.yaml
index 9520a2f..27e7cf4 100644
--- a/configs-examples/ceph_raw.yaml
+++ b/configs-examples/ceph_raw.yaml
@@ -20,4 +20,4 @@
         cfg: ceph
         params:
             FILENAME: /dev/rbd/rbd/${RBD_DEV_NAME_OR_LINK}
-            FILESIZE: ${FILESIZE}
+            TEST_FILE_SIZE: ${FILESIZE}
diff --git a/configs-examples/hdd.yaml b/configs-examples/hdd.yaml
index d38904a..52a39d2 100644
--- a/configs-examples/hdd.yaml
+++ b/configs-examples/hdd.yaml
@@ -8,4 +8,4 @@
         cfg: hdd
         params:
             FILENAME: ${FILEPATH}
-            FILESIZE: ${FILESIZE}
+            TEST_FILE_SIZE: ${FILESIZE}
diff --git a/configs-examples/local_ceph.yaml b/configs-examples/local_ceph.yaml
index 519f094..02568e4 100644
--- a/configs-examples/local_ceph.yaml
+++ b/configs-examples/local_ceph.yaml
@@ -17,4 +17,4 @@
         cfg: ceph
         params:
             FILENAME: ${CEPH_RBD_DEVICE}
-            FILESIZE: ${FILESIZE}
+            TEST_FILE_SIZE: ${FILESIZE}