diff --git a/imm_ptl_core/src/main/java/com/qouteall/immersive_portals/teleportation/CollisionHelper.java b/imm_ptl_core/src/main/java/com/qouteall/immersive_portals/teleportation/CollisionHelper.java
index a0cf441e6..277a0a8df 100644
--- a/imm_ptl_core/src/main/java/com/qouteall/immersive_portals/teleportation/CollisionHelper.java
+++ b/imm_ptl_core/src/main/java/com/qouteall/immersive_portals/teleportation/CollisionHelper.java
@@ -340,8 +340,10 @@ public static void initClient() {
     
     @Environment(EnvType.CLIENT)
     public static void updateClientGlobalPortalCollidingPortal() {
-        for (ClientWorld world : ClientWorldLoader.getClientWorlds()) {
-            updateGlobalPortalCollidingPortalForWorld(world);
+        if (ClientWorldLoader.getIsInitialized()) {
+            for (ClientWorld world : ClientWorldLoader.getClientWorlds()) {
+                updateGlobalPortalCollidingPortalForWorld(world);
+            }
         }
     }