diff --git a/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/vm/ContinuationFrame.kt b/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/vm/ContinuationFrame.kt
index 8b2f669f5..78cbbce48 100644
--- a/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/vm/ContinuationFrame.kt
+++ b/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/vm/ContinuationFrame.kt
@@ -46,8 +46,8 @@ interface ContinuationFrame {
      * Return the number of iotas contained inside this frame, used for determining whether it is valid to serialise.
      */
     fun size(): Int
-    fun depth(): Int
-    fun subIotas(): Iterable<Iota>?
+    fun depth(): Int = 0
+    fun subIotas(): Iterable<Iota>? = null
 
     val type: Type<*>