diff --git a/aegisub/auto4_lua.h b/aegisub/auto4_lua.h
index 12537c818..e6351f363 100644
--- a/aegisub/auto4_lua.h
+++ b/aegisub/auto4_lua.h
@@ -41,8 +41,8 @@
 #include "auto4_base.h"
 #include <wx/thread.h>
 #include <wx/event.h>
-#include <lua.h>
-#include <lauxlib.h>
+#include "../lua51/src/lua.h"
+#include "../lua51/src/lauxlib.h"
 
 class wxWindow;
 
diff --git a/aegisub/auto4_lua_assfile.cpp b/aegisub/auto4_lua_assfile.cpp
index f53f9241c..0e0524df6 100644
--- a/aegisub/auto4_lua_assfile.cpp
+++ b/aegisub/auto4_lua_assfile.cpp
@@ -38,8 +38,8 @@
 #include "ass_style.h"
 #include "ass_file.h"
 #include "ass_override.h"
-#include <lualib.h>
-#include <lauxlib.h>
+#include "../lua51/src/lualib.h"
+#include "../lua51/src/lauxlib.h"
 #include <assert.h>
 #include <algorithm>
 
diff --git a/aegisub/auto4_lua_dialog.cpp b/aegisub/auto4_lua_dialog.cpp
index 27f59c5f3..0d3fec062 100644
--- a/aegisub/auto4_lua_dialog.cpp
+++ b/aegisub/auto4_lua_dialog.cpp
@@ -34,8 +34,8 @@
 //
 
 #include "auto4_lua.h"
-#include <lualib.h>
-#include <lauxlib.h>
+#include "../lua51/src/lualib.h"
+#include "../lua51/src/lauxlib.h"
 #include <wx/window.h>
 #include <wx/spinctrl.h>
 #include <wx/gbsizer.h>