diff --git a/modules/gdnative/include/gdnative/gdnative.h b/modules/gdnative/include/gdnative/gdnative.h
index 0a884e6106b..6e69d43469d 100644
--- a/modules/gdnative/include/gdnative/gdnative.h
+++ b/modules/gdnative/include/gdnative/gdnative.h
@@ -53,7 +53,7 @@ extern "C" {
 
 // This is for libraries *using* the header, NOT GODOT EXPOSING STUFF!!
 #ifdef _WIN32
-#define GDN_EXPORT
+#define GDN_EXPORT __declspec(dllexport)
 #else
 #define GDN_EXPORT
 #endif