diff --git a/tcc.h b/tcc.h
index baae6705..8ef9ad28 100644
--- a/tcc.h
+++ b/tcc.h
@@ -500,7 +500,6 @@ typedef struct CString {
     int size_allocated;
     void *data; /* either 'char *' or 'nwchar_t *' */
 } CString;
-_Static_assert(sizeof(CString) == 16, "CString should only require 16 bytes");
 
 /* type definition */
 typedef struct CType {