diff --git a/src/main/java/mpms/permission/DynamicData.java b/src/main/java/mpms/permission/DynamicData.java
index 1d41b930c6f98ec98adfa5a4c1a92e78161f764c..09ba957dc2f20dd7a3754cb853a81a0ace8b8986 100644
--- a/src/main/java/mpms/permission/DynamicData.java
+++ b/src/main/java/mpms/permission/DynamicData.java
@@ -19,4 +19,6 @@ import java.util.stream.Collectors;
  */
 public class DynamicData {
 
+    private static final Map<ClassFeature, DynamicData> DYNAMIC_DATA_MAP = new HashMap<>();
+
 }