diff --git a/src/prim/windows/prim.c b/src/prim/windows/prim.c
index 31ef0e94..1314065b 100644
--- a/src/prim/windows/prim.c
+++ b/src/prim/windows/prim.c
@@ -670,7 +670,7 @@ static void NTAPI mi_win_main(PVOID module, DWORD reason, LPVOID reserved) {
   #define MI_PRIM_HAS_PROCESS_ATTACH  1
 
   // Windows DLL: easy to hook into process_init and thread_done
-  __declspec(dllexport) BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, LPVOID reserved) {
+  BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, LPVOID reserved) {
     mi_win_main((PVOID)inst,reason,reserved);
     return TRUE;
   }