diff --git a/Include/Python.h b/Include/Python.h
index f34d581f0b4c91..64be80145890a3 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -59,14 +59,6 @@
 #  include <intrin.h>             // __readgsqword()
 #endif
 
-// Suppress known warnings in Python header files.
-#if defined(_MSC_VER)
-// Warning that alignas behaviour has changed. Doesn't affect us, because we
-// never relied on the old behaviour.
-#pragma warning(push)
-#pragma warning(disable: 5274)
-#endif
-
 // Include Python header files
 #include "pyport.h"
 #include "pymacro.h"
@@ -146,9 +138,4 @@
 #include "cpython/pyfpe.h"
 #include "cpython/tracemalloc.h"
 
-// Restore warning filter
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
 #endif /* !Py_PYTHON_H */
diff --git a/Include/cpython/unicodeobject.h b/Include/cpython/unicodeobject.h
index 3d0414f5291fe4..d447cafb31536c 100644
--- a/Include/cpython/unicodeobject.h
+++ b/Include/cpython/unicodeobject.h
@@ -47,6 +47,12 @@ static inline Py_UCS4 Py_UNICODE_LOW_SURROGATE(Py_UCS4 ch) {
 
 /* --- Unicode Type ------------------------------------------------------- */
 
+// Suppress known warning with _Py_ALIGN_AS; see gh-135183
+#if defined(_MSC_VER)
+#  pragma warning(push)
+#  pragma warning(disable: 5274)
+#endif
+
 /* ASCII-only strings created through PyUnicode_New use the PyASCIIObject
    structure. state.ascii and state.compact are set, and the data
    immediately follow the structure. utf8_length can be found
@@ -162,6 +168,11 @@ typedef struct {
     } state;
 } PyASCIIObject;
 
+// Restore warning filter
+#ifdef _MSC_VER
+#  pragma warning(pop)
+#endif
+
 /* Non-ASCII strings allocated through PyUnicode_New use the
    PyCompactUnicodeObject structure. state.compact is set, and the data
    immediately follow the structure. */
diff --git a/Include/pymacro.h b/Include/pymacro.h
index d410645034d848..e3740c3e267dae 100644
--- a/Include/pymacro.h
+++ b/Include/pymacro.h
@@ -24,7 +24,11 @@
 #endif
 
 
-// _Py_ALIGN_AS: this compiler's spelling of `alignas` keyword,
+// _Py_ALIGN_AS: this compiler's spelling of `alignas` keyword.
+//
+// N.B. Applying this to a `struct` member might trigger MSVC warning 5274;
+// see gh-135183 in that case.
+//
 // We currently use alignas for free-threaded builds only; additional compat
 // checking would be great before we add it to the default build.
 // Standards/compiler support: