diff --git a/cf/win32.m4 b/cf/win32.m4
index 514513b81..e2bc9c1b3 100644
--- a/cf/win32.m4
+++ b/cf/win32.m4
@@ -3,7 +3,7 @@ dnl rk_WIN32_EXPORT buildsymbol symbol-that-export
 AC_DEFUN([rk_WIN32_EXPORT],[AH_TOP([#ifdef $1
 #ifndef $2
 #ifdef _WIN32_
-#define $2 _export _stdcall
+#define $2 __declspec(dllexport) _stdcall
 #else
 #define $2
 #endif