diff --git a/Source/init.h b/Source/init.h
index b92bd6ac7..3fe75fed6 100644
--- a/Source/init.h
+++ b/Source/init.h
@@ -23,6 +23,10 @@ extern HANDLE patch_rt_mpq;
 extern HANDLE hfmonk_mpq;
 extern HANDLE hfbard_mpq;
 extern HANDLE hfbarb_mpq;
+extern HANDLE hfmusic_mpq;
+extern HANDLE hfvoice_mpq;
+extern HANDLE hfopt1_mpq;
+extern HANDLE hfopt2_mpq;
 #endif
 
 void init_cleanup();