diff --git a/src/engine/InterestManagement/Terrain.java b/src/engine/InterestManagement/Terrain.java
index 58513006..34703978 100644
--- a/src/engine/InterestManagement/Terrain.java
+++ b/src/engine/InterestManagement/Terrain.java
@@ -123,7 +123,7 @@ public class Terrain {
 
         // Blend between terrains
 
-        return (interpolatedChildHeight + interpolatedParentTerrainHeight) * terrainZone.terrain.terrainBlend(terrainOffset);
+        return (interpolatedChildHeight + interpolatedParentTerrainHeight) * (1 - terrainZone.terrain.terrainBlend(terrainOffset));
 
     }