diff --git a/include/wx/propgrid/manager.h b/include/wx/propgrid/manager.h
index c0c5dc2d9c..3d6be64f6e 100644
--- a/include/wx/propgrid/manager.h
+++ b/include/wx/propgrid/manager.h
@@ -168,7 +168,6 @@ class WXDLLIMPEXP_PROPGRID
     wxPropertyGridManager : public wxPanel, public wxPropertyGridInterface
 {
     wxDECLARE_CLASS(wxPropertyGridManager);
-    friend class wxPropertyGridPage;
 public:
 
 #ifndef SWIG
diff --git a/include/wx/propgrid/property.h b/include/wx/propgrid/property.h
index 6165daa556..14c4508920 100644
--- a/include/wx/propgrid/property.h
+++ b/include/wx/propgrid/property.h
@@ -2146,7 +2146,6 @@ protected:
 // Category (caption) property.
 class WXDLLIMPEXP_PROPGRID wxPropertyCategory : public wxPGProperty
 {
-    friend class wxPropertyGrid;
     friend class wxPropertyGridPageState;
     WX_PG_DECLARE_PROPERTY_CLASS(wxPropertyCategory)
 public:
diff --git a/include/wx/propgrid/propgridiface.h b/include/wx/propgrid/propgridiface.h
index 315cab9944..9eb91579ba 100644
--- a/include/wx/propgrid/propgridiface.h
+++ b/include/wx/propgrid/propgridiface.h
@@ -1160,9 +1160,6 @@ private:
 
         return m_pState->GetGrid();
     }
-
-    friend class wxPropertyGrid;
-    friend class wxPropertyGridManager;
 };
 
 #endif // wxUSE_PROPGRID
diff --git a/interface/wx/propgrid/property.h b/interface/wx/propgrid/property.h
index 92c5474e22..ba9b61a51d 100644
--- a/interface/wx/propgrid/property.h
+++ b/interface/wx/propgrid/property.h
@@ -2940,7 +2940,6 @@ public:
 */
 class wxPropertyCategory : public wxPGProperty
 {
-    friend class wxPropertyGrid;
     friend class wxPropertyGridPageState;
 public: