diff --git a/include/wx/xrc/xmlres.h b/include/wx/xrc/xmlres.h
index 4bcd32b180..ecf0ca4c0b 100644
--- a/include/wx/xrc/xmlres.h
+++ b/include/wx/xrc/xmlres.h
@@ -512,7 +512,7 @@ public:
     // wxXML_ENTITY_NODE name="tag", content=""
     //    |-- wxXML_TEXT_NODE or
     //        wxXML_CDATA_SECTION_NODE name="" content="content"
-    wxString GetNodeContent(const wxXmlNode *node) override;
+    wxString GetNodeContent(const wxXmlNode *node) const override;
 
     wxXmlNode *GetNodeParent(const wxXmlNode *node) const override;
     wxXmlNode *GetNodeNext(const wxXmlNode *node) const override;
diff --git a/include/wx/xrc/xmlreshandler.h b/include/wx/xrc/xmlreshandler.h
index bfbbfb4318..2b00ceefe4 100644
--- a/include/wx/xrc/xmlreshandler.h
+++ b/include/wx/xrc/xmlreshandler.h
@@ -61,7 +61,7 @@ public:
                                      wxObject *instance) = 0;
     virtual bool IsOfClass(wxXmlNode *node, const wxString& classname) const = 0;
     virtual bool IsObjectNode(const wxXmlNode *node) const = 0;
-    virtual wxString GetNodeContent(const wxXmlNode *node) = 0;
+    virtual wxString GetNodeContent(const wxXmlNode *node) const = 0;
     virtual wxXmlNode *GetNodeParent(const wxXmlNode *node) const = 0;
     virtual wxXmlNode *GetNodeNext(const wxXmlNode *node) const = 0;
     virtual wxXmlNode *GetNodeChildren(const wxXmlNode *node) const = 0;
@@ -240,7 +240,7 @@ protected:
     {
         return GetImpl()->IsObjectNode(node);
     }
-    wxString GetNodeContent(const wxXmlNode *node)
+    wxString GetNodeContent(const wxXmlNode *node) const
     {
         return GetImpl()->GetNodeContent(node);
     }
diff --git a/interface/wx/xrc/xmlres.h b/interface/wx/xrc/xmlres.h
index 8db9539fdb..ce1db0dede 100644
--- a/interface/wx/xrc/xmlres.h
+++ b/interface/wx/xrc/xmlres.h
@@ -763,7 +763,7 @@ protected:
     /**
         Gets node content from wxXML_ENTITY_NODE.
     */
-    wxString GetNodeContent(wxXmlNode* node);
+    wxString GetNodeContent(wxXmlNode* node) const;
 
     /**
         Gets the parent of the node given.
diff --git a/src/xrc/xmlres.cpp b/src/xrc/xmlres.cpp
index b8d503caea..e3746da976 100644
--- a/src/xrc/xmlres.cpp
+++ b/src/xrc/xmlres.cpp
@@ -2260,7 +2260,7 @@ bool wxXmlResourceHandlerImpl::IsObjectNode(const wxXmlNode *node) const
                     node->GetName() == wxS("object_ref"));
 }
 
-wxString wxXmlResourceHandlerImpl::GetNodeContent(const wxXmlNode *node)
+wxString wxXmlResourceHandlerImpl::GetNodeContent(const wxXmlNode *node) const
 {
     return node ? node->GetNodeContent() : wxString{};
 }