diff --git a/src/data/trainNumberRules.json b/src/data/trainNumberRules.json
index 3c692dc..f163b15 100644
--- a/src/data/trainNumberRules.json
+++ b/src/data/trainNumberRules.json
@@ -22,7 +22,7 @@
       "TRE", "TRS", 
       "TSE", "TSS",
       "THE", "THS",
-      "LPE", 
+      "LPE", "LPS",
       "LTE", "LTS",
       "LSS",
       "LZE", "LZS",