diff --git a/tee/supervisor-tdx/src/panic.rs b/tee/supervisor-tdx/src/panic.rs
index b08625a..211a9d8 100644
--- a/tee/supervisor-tdx/src/panic.rs
+++ b/tee/supervisor-tdx/src/panic.rs
@@ -1,3 +1,4 @@
+use core::arch::asm;
 use core::panic::PanicInfo;
 
 use log::error;
@@ -5,5 +6,13 @@ use log::error;
 #[panic_handler]
 fn panic_handler(info: &PanicInfo) -> ! {
     error!("{info}");
-    loop {}
+    triple_fault();
+}
+
+fn triple_fault() -> ! {
+    // We don't have an exception handler for int3 or double faults, so this
+    // will cause a triple fault.
+    unsafe {
+        asm!("int3", options(noreturn));
+    }
 }