diff --git a/libqpdf/qpdf/QPDFObjectHandle_private.hh b/libqpdf/qpdf/QPDFObjectHandle_private.hh
index 009f43b..2473c2b 100644
--- a/libqpdf/qpdf/QPDFObjectHandle_private.hh
+++ b/libqpdf/qpdf/QPDFObjectHandle_private.hh
@@ -4,6 +4,7 @@
 #include <qpdf/QPDFObjectHandle.hh>
 
 #include <qpdf/QPDFObject_private.hh>
+#include <qpdf/QPDF_private.hh>
 #include <qpdf/QUtil.hh>
 
 namespace qpdf
@@ -428,6 +429,18 @@ QPDFObject::create(Args&&... args)
     return std::make_shared<QPDFObject>(std::forward<T>(T(std::forward<Args>(args)...)));
 }
 
+inline qpdf_object_type_e
+QPDFObject::getResolvedTypeCode() const
+{
+    if (getTypeCode() == ::ot_unresolved) {
+        return QPDF::Resolver::resolved(qpdf, og)->getTypeCode();
+    }
+    if (getTypeCode() == ::ot_reference) {
+        return std::get<QPDF_Reference>(value).obj->getTypeCode();
+    }
+    return getTypeCode();
+}
+
 inline qpdf::Array
 QPDFObjectHandle::as_array(qpdf::typed options) const
 {
diff --git a/libqpdf/qpdf/QPDFObject_private.hh b/libqpdf/qpdf/QPDFObject_private.hh
index 8a9be46..888f8ca 100644
--- a/libqpdf/qpdf/QPDFObject_private.hh
+++ b/libqpdf/qpdf/QPDFObject_private.hh
@@ -7,8 +7,8 @@
 #include <qpdf/Constants.h>
 #include <qpdf/JSON.hh>
 #include <qpdf/JSON_writer.hh>
+#include <qpdf/QPDF.hh>
 #include <qpdf/QPDFObjGen.hh>
-#include <qpdf/QPDF_private.hh>
 #include <qpdf/Types.h>
 
 #include <map>
@@ -301,17 +301,8 @@ class QPDFObject
     std::string getStringValue() const;
 
     // Return a unique type code for the resolved object
-    qpdf_object_type_e
-    getResolvedTypeCode() const
-    {
-        if (getTypeCode() == ::ot_unresolved) {
-            return QPDF::Resolver::resolved(qpdf, og)->getTypeCode();
-        }
-        if (getTypeCode() == ::ot_reference) {
-            return std::get<QPDF_Reference>(value).obj->getTypeCode();
-        }
-        return getTypeCode();
-    }
+    inline qpdf_object_type_e getResolvedTypeCode() const;
+
     // Return a unique type code for the object
     qpdf_object_type_e
     getTypeCode() const