diff --git a/tests/functional/pyocf/types/core.py b/tests/functional/pyocf/types/core.py
index 223f9e6..eddd56f 100644
--- a/tests/functional/pyocf/types/core.py
+++ b/tests/functional/pyocf/types/core.py
@@ -42,7 +42,6 @@ class CoreConfig(Structure):
         ("_volume_type", c_uint8),
         ("_core_id", c_uint16),
         ("_name", c_char_p),
-        ("_cache_id", c_uint16),
         ("_try_add", c_bool),
         ("_seq_cutoff_threshold", c_uint32),
         ("_user_metadata", UserMetadata),