diff --git a/nucleus/src/arch/aarch64/caps.rs b/nucleus/src/arch/aarch64/caps.rs
index 3653af5..610d0b1 100644
--- a/nucleus/src/arch/aarch64/caps.rs
+++ b/nucleus/src/arch/aarch64/caps.rs
@@ -495,7 +495,7 @@ impl CapNodeCapability {
 }
 
 /// Wrapper for CapDerivationNode
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct DerivationTreeNode(LocalRegisterCopy<u128, CapDerivationNode::Register>);
 
 /// Errors that may happen in capability derivation tree operations.