diff --git a/test/functional/api/cas/statistics.py b/test/functional/api/cas/statistics.py
index 1f2a9f4af..789560883 100644
--- a/test/functional/api/cas/statistics.py
+++ b/test/functional/api/cas/statistics.py
@@ -22,6 +22,7 @@ class UnitType(Enum):
     kibibyte = "[KiB]"
     gibibyte = "[GiB]"
     seconds = "[s]"
+    byte = "[B]"
 
     def __str__(self):
         return self.value