diff --git a/fpdfsdk/src/fpdfview.cpp b/fpdfsdk/src/fpdfview.cpp
index 8da56dc..8b3dff2 100644
--- a/fpdfsdk/src/fpdfview.cpp
+++ b/fpdfsdk/src/fpdfview.cpp
@@ -416,7 +416,7 @@
 }
 
 DLLEXPORT int STDCALL FPDF_GetPageCount(FPDF_DOCUMENT document) {
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
+  CPDFXFA_Document* pDoc = static_cast<CPDFXFA_Document*>(document);
   return pDoc ? pDoc->GetPageCount() : 0;
 }