diff --git a/fpdfsdk/cpdfsdk_interactiveform.cpp b/fpdfsdk/cpdfsdk_interactiveform.cpp
index 30a7528..2fee643 100644
--- a/fpdfsdk/cpdfsdk_interactiveform.cpp
+++ b/fpdfsdk/cpdfsdk_interactiveform.cpp
@@ -169,7 +169,7 @@
 
 void CPDFSDK_InteractiveForm::GetWidgets(
     const WideString& sFieldName,
-    std::vector<CPDFSDK_Annot::ObservedPtr>* widgets) const {
+    std::vector<ObservedPtr<CPDFSDK_Annot>>* widgets) const {
   for (int i = 0, sz = m_pInteractiveForm->CountFields(sFieldName); i < sz;
        ++i) {
     CPDF_FormField* pFormField = m_pInteractiveForm->GetField(i, sFieldName);
@@ -180,7 +180,7 @@
 
 void CPDFSDK_InteractiveForm::GetWidgets(
     CPDF_FormField* pField,
-    std::vector<CPDFSDK_Annot::ObservedPtr>* widgets) const {
+    std::vector<ObservedPtr<CPDFSDK_Annot>>* widgets) const {
   for (int i = 0, sz = pField->CountControls(); i < sz; ++i) {
     CPDF_FormControl* pFormCtrl = pField->GetControl(i);
     ASSERT(pFormCtrl);