diff --git a/Source/the_twilight_abyss/PlayerTemp/TempCharacter.cpp b/Source/the_twilight_abyss/PlayerTemp/TempCharacter.cpp
index 30376e3..f7c14ed 100644
--- a/Source/the_twilight_abyss/PlayerTemp/TempCharacter.cpp
+++ b/Source/the_twilight_abyss/PlayerTemp/TempCharacter.cpp
@@ -69,7 +69,7 @@ void ATempCharacter::Sneak()
 		for (AActor* Actor : AIActors)
 		{
 			USphereComponent* SphereComponent = Actor->FindComponentByClass<USphereComponent>();
-			if (SphereComponent != nullptr)
+			if (IsValid(SphereComponent))
 			{
 				SphereComponent->SetSphereRadius(40.0f); //default value
 			}