diff --git a/test/functional/api/cas/cache_config.py b/test/functional/api/cas/cache_config.py
index 5555a57..e945342 100644
--- a/test/functional/api/cas/cache_config.py
+++ b/test/functional/api/cas/cache_config.py
@@ -54,11 +54,14 @@ class MetadataMode(Enum):
 
 
 class CleaningPolicy(Enum):
-    alru = 0
-    nop = 1
-    acp = 2
+    alru = "ALRU"
+    nop = "NOP"
+    acp = "ACP"
     DEFAULT = alru
 
+    def __str__(self):
+        return self.value
+
 
 class CacheStatus(Enum):
     not_running = 0