diff --git a/src/test/mir-opt/retag.rs b/src/test/mir-opt/retag.rs
index 34559a8181da7..db36a1fab5f21 100644
--- a/src/test/mir-opt/retag.rs
+++ b/src/test/mir-opt/retag.rs
@@ -1,3 +1,4 @@
+// ignore-wasm32-bare compiled with panic=abort by default
 // ignore-tidy-linelength
 // compile-flags: -Z mir-emit-retag -Z mir-opt-level=0 -Z span_free_formats