diff --git a/plugin/src/main/java/lol/pyr/znpcsplus/npc/NpcImpl.java b/plugin/src/main/java/lol/pyr/znpcsplus/npc/NpcImpl.java
index 14e0b0a..bc3d972 100644
--- a/plugin/src/main/java/lol/pyr/znpcsplus/npc/NpcImpl.java
+++ b/plugin/src/main/java/lol/pyr/znpcsplus/npc/NpcImpl.java
@@ -113,6 +113,7 @@ public class NpcImpl extends Viewable implements Npc {
     }
 
     public <T> void setProperty(EntityPropertyImpl<T> key, T value) {
+        if (value == null) return;
         if (value.equals(key.getDefaultValue())) removeProperty(key);
         else propertyMap.put(key, value);
         _refreshMeta();