diff --git a/gb.poppler/src/c_pdf_document.cpp b/gb.poppler/src/c_pdf_document.cpp
index bc3f230f8..ff91b49d7 100644
--- a/gb.poppler/src/c_pdf_document.cpp
+++ b/gb.poppler/src/c_pdf_document.cpp
@@ -43,7 +43,7 @@ struct _PopplerPage
 struct _PopplerDocument
 {
   GObject parent_instance;
-  std::unique_ptr<GlobalParamsIniter> initer;
+  void *initer;
   PDFDoc *doc;
 
   GList *layers;