diff --git a/src/interpreter/instructions/call.rs b/src/interpreter/instructions/call.rs
index 9f4ac02..5fe896b 100644
--- a/src/interpreter/instructions/call.rs
+++ b/src/interpreter/instructions/call.rs
@@ -88,7 +88,7 @@ mod tests {
                 InterfaceValue::I32(3),
                 InterfaceValue::I32(4),
             ],
-            instance: Instance { ..Default::default() },
+            instance: Default::default(),
             error: r#"`call 42` cannot call the local or imported function `42` because it doesn't exist."#,
     );