diff --git a/test/functional/api/cas/ioclass_config.py b/test/functional/api/cas/ioclass_config.py
index c344dfe..55d33b6 100644
--- a/test/functional/api/cas/ioclass_config.py
+++ b/test/functional/api/cas/ioclass_config.py
@@ -31,7 +31,7 @@ IO_CLASS_CONFIG_HEADER = "IO class id,IO class name,Eviction priority,Allocation
 @functools.total_ordering
 class IoClass:
     def __init__(self, class_id: int, rule: str = '', priority: int = None,
-                 allocation: str = '1.00'):
+                 allocation: str = "1.00"):
         self.id = class_id
         self.rule = rule
         self.priority = priority
diff --git a/test/functional/tests/io_class/io_class_common.py b/test/functional/tests/io_class/io_class_common.py
index c196713..6672d60 100644
--- a/test/functional/tests/io_class/io_class_common.py
+++ b/test/functional/tests/io_class/io_class_common.py
@@ -55,7 +55,7 @@ def prepare(
     ioclass_config.add_ioclass(
         ioclass_id=0,
         eviction_priority=22,
-        allocation=False,
+        allocation="0.00",
         rule="unclassified",
         ioclass_config_path=ioclass_config_path,
     )