diff --git a/library/include/PluginStatics.h b/library/include/PluginStatics.h
index 061fd3a21..5665fb9e6 100644
--- a/library/include/PluginStatics.h
+++ b/library/include/PluginStatics.h
@@ -8,6 +8,8 @@
 
 #pragma once
 
+#include <xlsxio_read.h>
+
 #include "DataIdentity.h"
 
 namespace DFHack {
@@ -26,14 +28,12 @@ struct DFHACK_EXPORT xlsx_sheet_handle_identity : public compound_identity {
 };
 
 struct DFHACK_EXPORT xlsx_file_handle {
-    typedef struct xlsxio_read_struct* xlsxioreader;
     const xlsxioreader handle;
     xlsx_file_handle(xlsxioreader handle): handle(handle) {}
     static xlsx_file_handle_identity _identity;
 };
 
 struct DFHACK_EXPORT xlsx_sheet_handle {
-    typedef struct xlsxio_read_sheet_struct* xlsxioreadersheet;
     const xlsxioreadersheet handle;
     xlsx_sheet_handle(xlsxioreadersheet handle): handle(handle) {}
     static xlsx_sheet_handle_identity _identity;