diff --git a/core/src/mindustry/game/CampaignRules.java b/core/src/mindustry/game/CampaignRules.java
index 3f55661772..13e3389d43 100644
--- a/core/src/mindustry/game/CampaignRules.java
+++ b/core/src/mindustry/game/CampaignRules.java
@@ -13,5 +13,7 @@ public class CampaignRules{
         rules.randomWaveAI = randomWaveAI;
         rules.teams.get(rules.waveTeam).blockHealthMultiplier = difficulty.enemyHealthMultiplier;
         rules.teams.get(rules.waveTeam).unitHealthMultiplier = difficulty.enemyHealthMultiplier;
+        rules.teams.get(rules.waveTeam).unitCostMultiplier = 1f / difficulty.enemySpawnMultiplier;
+        rules.teams.get(rules.waveTeam).unitBuildSpeedMultiplier = difficulty.enemySpawnMultiplier;
     }
 }