diff --git a/xfa/fxfa/cxfa_ffdoc.cpp b/xfa/fxfa/cxfa_ffdoc.cpp
index 1bec0e7..4838e10 100644
--- a/xfa/fxfa/cxfa_ffdoc.cpp
+++ b/xfa/fxfa/cxfa_ffdoc.cpp
@@ -90,8 +90,7 @@
 }
 
 bool CXFA_FFDoc::BuildDoc(CFX_XMLDocument* pXML) {
-  if (!pXML)
-    return false;
+  DCHECK(pXML);
 
   CXFA_DocumentBuilder builder(m_pDocument);
   if (!builder.BuildDocument(pXML, XFA_PacketType::Xdp))
diff --git a/xfa/fxfa/parser/cxfa_document_builder.cpp b/xfa/fxfa/parser/cxfa_document_builder.cpp
index ce46d74..05fa2a7 100644
--- a/xfa/fxfa/parser/cxfa_document_builder.cpp
+++ b/xfa/fxfa/parser/cxfa_document_builder.cpp
@@ -232,6 +232,8 @@
 
 bool CXFA_DocumentBuilder::BuildDocument(CFX_XMLDocument* pXML,
                                          XFA_PacketType ePacketID) {
+  DCHECK(pXML);
+
   CFX_XMLNode* root = Build(pXML);
   if (!root)
     return false;