diff --git a/core/src/mindustry/world/blocks/power/ConsumeGenerator.java b/core/src/mindustry/world/blocks/power/ConsumeGenerator.java
index 6ebecbfabb..d405cebd11 100644
--- a/core/src/mindustry/world/blocks/power/ConsumeGenerator.java
+++ b/core/src/mindustry/world/blocks/power/ConsumeGenerator.java
@@ -89,14 +89,12 @@ public class ConsumeGenerator extends PowerGenerator{
 
         @Override
         public void updateEfficiencyMultiplier(){
-            efficiencyMultiplier = 1f;
             if(filterItem != null){
                 float m = filterItem.efficiencyMultiplier(this);
-                if(m > 0) efficiencyMultiplier *= m;
-            }
-            if(filterLiquid != null){
+                if(m > 0) efficiencyMultiplier = m;
+            }else if(filterLiquid != null){
                 float m = filterLiquid.efficiencyMultiplier(this);
-                if(m > 0) efficiencyMultiplier *= m;
+                if(m > 0) efficiencyMultiplier = m;
             }
         }