diff --git a/src/main.cc b/src/main.cc
index 3ab2744..73a02e4 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -6,6 +6,8 @@
 
 extern u32 __stdcall doghook_process_attach(void *a);
 
+u32 __stdcall doghook_process_attach(void *a) { return 0; }
+
 __declspec(dllexport) BOOL APIENTRY DllMain(HMODULE hModule,
                                             DWORD   reason,
                                             LPVOID  lpReserved) {