diff --git a/src/main/java/noppes/npcs/controllers/data/SpawnData.java b/src/main/java/noppes/npcs/controllers/data/SpawnData.java
index b1728404e..5ceb23f08 100644
--- a/src/main/java/noppes/npcs/controllers/data/SpawnData.java
+++ b/src/main/java/noppes/npcs/controllers/data/SpawnData.java
@@ -58,7 +58,7 @@ public class SpawnData extends WeightedRandom.Item implements INaturalSpawn {
 		airSpawning = compound.getBoolean("CaveSpawning");
 
 		spawnHeightMin = compound.getInteger("HeightMin");
-		if (compound.hasKey("HeightMax")) {
+		if (!compound.hasKey("HeightMax")) {
 			spawnHeightMax = 100;
 		} else {
 			spawnHeightMax = compound.getInteger("HeightMax");