diff --git a/library/core/src/ffi/va_list.rs b/library/core/src/ffi/va_list.rs
index 93ec8122fa128..a489ac1fc97ba 100644
--- a/library/core/src/ffi/va_list.rs
+++ b/library/core/src/ffi/va_list.rs
@@ -136,9 +136,9 @@ pub struct VaList<'a, 'f: 'a> {
             not(target_arch = "aarch64"),
             not(target_arch = "powerpc"),
             not(target_arch = "s390x"),
-            not(target_arch = "xtensa"),
             not(target_arch = "x86_64")
         ),
+        target_arch = "xtensa",
         all(target_arch = "aarch64", target_vendor = "apple"),
         target_family = "wasm",
         target_os = "uefi",
@@ -151,7 +151,6 @@ pub struct VaList<'a, 'f: 'a> {
             target_arch = "aarch64",
             target_arch = "powerpc",
             target_arch = "s390x",
-            target_arch = "xtensa",
             target_arch = "x86_64"
         ),
         any(not(target_arch = "aarch64"), not(target_vendor = "apple")),
@@ -169,9 +168,9 @@ pub struct VaList<'a, 'f: 'a> {
         not(target_arch = "aarch64"),
         not(target_arch = "powerpc"),
         not(target_arch = "s390x"),
-        not(target_arch = "xtensa"),
         not(target_arch = "x86_64")
     ),
+    target_arch = "xtensa",
     all(target_arch = "aarch64", target_vendor = "apple"),
     target_family = "wasm",
     target_os = "uefi",
@@ -190,9 +189,9 @@ impl<'f> VaListImpl<'f> {
         target_arch = "aarch64",
         target_arch = "powerpc",
         target_arch = "s390x",
-        target_arch = "xtensa",
         target_arch = "x86_64"
     ),
+    not(target_arch = "xtensa"),
     any(not(target_arch = "aarch64"), not(target_vendor = "apple")),
     not(target_family = "wasm"),
     not(target_os = "uefi"),