diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index 996dc30d5b..2944ffc5ab 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -2575,6 +2575,7 @@ public class Blocks{
             itemCapacity = 40;
             //can't mine thorium for balance reasons, needs better drill
             blockedItem = Items.thorium;
+            researchCostMultiplier = 0.5f;
 
             consumePower(160f / 60f);
             consumeLiquid(Liquids.water, 0.2f);