diff --git a/core/cds/inc/cds_config.h b/core/cds/inc/cds_config.h
index e45e479b246b..af2546005e57 100644
--- a/core/cds/inc/cds_config.h
+++ b/core/cds/inc/cds_config.h
@@ -155,7 +155,7 @@ struct cds_fils_connection_info {
 	uint8_t auth_type;
 	uint8_t pmk[MAX_PMK_LEN];
 	uint8_t pmk_len;
-	uint8_t pmkid[16];
+	uint8_t pmkid[MAX_PMKID_LEN];
 };
 #endif
 #endif /* !defined( __CDS_CONFIG_H ) */