diff --git a/modifications/modifierActions.json b/modifications/modifierActions.json
index a5dff20..5be39e5 100644
--- a/modifications/modifierActions.json
+++ b/modifications/modifierActions.json
@@ -312,7 +312,7 @@
     "mass": -0.1
   },
   "special_engine_cooled": {
-    "mass": 0.1,
+    "mass": 0.05,
     "thermload": -0.1
   },
   "special_engine_haulage": {