diff --git a/src/main/java/kamkeel/npcs/entity/EntityAbilityBeam.java b/src/main/java/kamkeel/npcs/entity/EntityAbilityBeam.java
index bceae89aa..6aed40c3f 100644
--- a/src/main/java/kamkeel/npcs/entity/EntityAbilityBeam.java
+++ b/src/main/java/kamkeel/npcs/entity/EntityAbilityBeam.java
@@ -843,6 +843,9 @@ public class EntityAbilityBeam extends EntityAbilityProjectile {
             trailList.appendTag(pointNbt);
         }
         nbt.setTag("Trail", trailList);
-        nbt.setString("SiblingUUID", siblingUUID.toString());
+
+        if (siblingUUID instanceof UUID) {
+            nbt.setString("SiblingUUID", siblingUUID.toString());
+        }
     }
 }
diff --git a/src/main/java/kamkeel/npcs/entity/EntityAbilityDisc.java b/src/main/java/kamkeel/npcs/entity/EntityAbilityDisc.java
index d0005c7e0..04afb2224 100644
--- a/src/main/java/kamkeel/npcs/entity/EntityAbilityDisc.java
+++ b/src/main/java/kamkeel/npcs/entity/EntityAbilityDisc.java
@@ -625,6 +625,9 @@ public class EntityAbilityDisc extends EntityAbilityProjectile {
 
         // Anchor data
         this.anchorData.writeNBT(nbt);
-        nbt.setString("SiblingUUID", siblingUUID.toString());
+
+        if (siblingUUID instanceof UUID) {
+            nbt.setString("SiblingUUID", siblingUUID.toString());
+        }
     }
 }
diff --git a/src/main/java/kamkeel/npcs/entity/EntityAbilityOrb.java b/src/main/java/kamkeel/npcs/entity/EntityAbilityOrb.java
index 250b1d629..3c5895206 100644
--- a/src/main/java/kamkeel/npcs/entity/EntityAbilityOrb.java
+++ b/src/main/java/kamkeel/npcs/entity/EntityAbilityOrb.java
@@ -490,6 +490,8 @@ public class EntityAbilityOrb extends EntityAbilityProjectile {
         anchorData.writeNBT(nbt);
         nbt.setFloat("TargetSize", targetSize);
 
-        nbt.setString("SiblingUUID", siblingUUID.toString());
+        if (siblingUUID instanceof UUID) {
+            nbt.setString("SiblingUUID", siblingUUID.toString());
+        }
     }
 }