diff --git a/src/constant/jx3/skilldatalib.py b/src/constant/jx3/skilldatalib.py
index 630264f67..eede29aae 100644
--- a/src/constant/jx3/skilldatalib.py
+++ b/src/constant/jx3/skilldatalib.py
@@ -30,6 +30,7 @@
 for x in __kf_dict:
     for y in __kf_dict[x]:
         kf_dict[y] = x
+    kf_dict[x] = x
 
 
 def kftosh(kf: str) -> str: