diff --git a/packages/pdfx/windows/pdfx.cpp b/packages/pdfx/windows/pdfx.cpp
index c420f990..e6c933b9 100644
--- a/packages/pdfx/windows/pdfx.cpp
+++ b/packages/pdfx/windows/pdfx.cpp
@@ -1,6 +1,7 @@
 #pragma warning(disable : 4458)
 
 // Windows imports
+#include <Shlwapi.h>
 #include <Windows.h>
 #include <gdiplus.h>