diff --git a/GameData/RP-1/SCMData/CostModifiers.cfg b/GameData/RP-1/SCMData/CostModifiers.cfg
index 6e95b3cb711..d0f4cb9fc53 100644
--- a/GameData/RP-1/SCMData/CostModifiers.cfg
+++ b/GameData/RP-1/SCMData/CostModifiers.cfg
@@ -43,7 +43,7 @@ KCTTAGS
         displayName = Human-Rated
         partMult = 1.25
         globalMult = 1.25
-		isHumanRating = True
+        isHumanRating = True
         desc = Has human-rated equipment that requires more time for integration and testing of the entire craft.
     }
     VALUE
@@ -96,6 +96,12 @@ KCTTAGS
         desc = Has toxic propellants that need to be handled carefully prior to launch.
     }
     VALUE
+    {
+        name = Hydrolox
+        displayName = Hydrolox
+        desc = Currently, no effect on launch cost.
+    }
+    VALUE
     {
         name = Cryogenic
         displayName = Cryo Propellants