diff --git a/ChangeLog b/ChangeLog
index a5c4de1c19..adbecd3f23 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Dec  4 10:43:58 2003  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/dl/sym.c (rb_dlsym_guardcall): __declspec(noinline) is VC7
+	  feature.
+
 Thu Dec  4 10:27:12 2003  Minero Aoki  <aamine@loveruby.net>
 
 	* lib/net/http.rb: update hyperlink to the Japanese document.
diff --git a/ext/dl/sym.c b/ext/dl/sym.c
index adf6137edf..8044e6a4bb 100644
--- a/ext/dl/sym.c
+++ b/ext/dl/sym.c
@@ -354,11 +354,11 @@ rb_dl_win32_set_last_error(VALUE self, VALUE val)
 
 #ifdef DLSTACK_GUARD
 # ifdef __MSVC_RUNTIME_CHECKS
-# pragma runtime_checks("s", off)
+#  pragma runtime_checks("s", off)
 # endif
-#ifdef _MSC_VER
+# if _MSC_VER >= 1300
 __declspec(noinline)
-#endif
+# endif
 static int
 rb_dlsym_guardcall(char type, ANY_TYPE *ret, long *stack, void *func)
 {
@@ -432,7 +432,7 @@ rb_dlsym_guardcall(char type, ANY_TYPE *ret, long *stack, void *func)
   return 1;
 }
 # ifdef __MSVC_RUNTIME_CHECKS
-# pragma runtime_checks("s", restore)
+#  pragma runtime_checks("s", restore)
 # endif
 #endif /* defined(DLSTACK_GUARD) */