diff --git a/no_atomic_cas.rs b/no_atomic_cas.rs
index 16ec628cd..394615daf 100644
--- a/no_atomic_cas.rs
+++ b/no_atomic_cas.rs
@@ -14,4 +14,5 @@ const NO_ATOMIC_CAS: &[&str] = &[
     "thumbv4t-none-eabi",
     "thumbv5te-none-eabi",
     "thumbv6m-none-eabi",
+    "xtensa-esp32s2-none-elf",
 ];