diff --git a/win32/include/assert.h b/win32/include/assert.h
index 466d4571..b15bb638 100644
--- a/win32/include/assert.h
+++ b/win32/include/assert.h
@@ -54,4 +54,9 @@ extern void __cdecl _assert(const char *, const char *, unsigned);
 
 #endif
 
+#if (__STDC_VERSION__ >= 201112L) && !defined(static_assert)
+/* C11, section 7.2: The macro static_assert expands to _Static_assert. */
+#define static_assert(exp, str) _Static_assert(exp, str) 
+#endif
+
 #endif