diff --git a/test/functional/tests/lazy_writes/test_flush_huge_dirty_data.py b/test/functional/tests/lazy_writes/test_flush_huge_dirty_data.py
index 133c8ca..e7d32c0 100644
--- a/test/functional/tests/lazy_writes/test_flush_huge_dirty_data.py
+++ b/test/functional/tests/lazy_writes/test_flush_huge_dirty_data.py
@@ -83,10 +83,10 @@ def test_flush_over_640_gibibytes_with_fs(cache_mode, fs):
         fio.run()
         test_file_main.refresh_item()
 
-    with TestRun.step("Validate test file and read its md5 sum."):
+    with TestRun.step("Validate test file and read its crc32 sum."):
         if test_file_main.size != file_size:
             TestRun.fail("Created test file hasn't reached its target size.")
-        test_file_md5sum_main = test_file_main.md5sum()
+        test_file_crc32sum_main = test_file_main.crc32sum()
 
     with TestRun.step("Write data to exported object."):
         test_file_copy = test_file_main.copy(mnt_point + "test_file_copy")
@@ -105,9 +105,9 @@ def test_flush_over_640_gibibytes_with_fs(cache_mode, fs):
         if output.exit_code != 0:
             TestRun.fail(f"Stopping cache with flush failed!\n{output.stderr}")
 
-    with TestRun.step("Mount core device and check md5 sum of test file copy."):
+    with TestRun.step("Mount core device and check crc32 sum of test file copy."):
         core_dev.mount(mnt_point)
-        if test_file_md5sum_main != test_file_copy.md5sum():
+        if test_file_crc32sum_main != test_file_copy.crc32sum():
             TestRun.LOGGER.error("Md5 sums should be equal.")
 
     with TestRun.step("Delete test files."):