4 files changed, 6 insertions, 4 deletions
diff --git a/src/extension/param/enum.h b/src/extension/param/enum.h
index 6fc22e8aa..ca008cda5 100644
--- a/src/extension/param/enum.h
+++ b/src/extension/param/enum.h
@@ -17,13 +17,13 @@
 #include <gtkmm/widget.h>
 
 #include "xml/document.h"
-#include <extension/extension-forward.h>
 
 #include "parameter.h"
 
 namespace Inkscape {
 namespace Extension {
 
+class Extension;
 
 
 // \brief  A class to represent a notebookparameter of an extension
diff --git a/src/extension/param/notebook.h b/src/extension/param/notebook.h
index fb21c9b63..983ad3161 100644
--- a/src/extension/param/notebook.h
+++ b/src/extension/param/notebook.h
@@ -17,13 +17,13 @@
 #include <gtkmm/widget.h>
 
 #include "xml/document.h"
-#include <extension/extension-forward.h>
 
 #include "parameter.h"
 
 namespace Inkscape {
 namespace Extension {
 
+class Extension;
 
 
 // \brief  A class to represent a notebookparameter of an extension
diff --git a/src/extension/param/parameter.h b/src/extension/param/parameter.h
index d8ed68439..e7a7538b7 100644
--- a/src/extension/param/parameter.h
+++ b/src/extension/param/parameter.h
@@ -18,12 +18,14 @@
 #include "xml/document.h"
 #include "xml/node.h"
 #include "document.h"
-#include "extension/extension-forward.h"
 #include <color.h>
 
 namespace Inkscape {
 namespace Extension {
 
+class Extension;
+
+
 /**
  * @brief The root directory in the preferences database for extension-related parameters
  *
diff --git a/src/extension/param/radiobutton.h b/src/extension/param/radiobutton.h
index e15afdbc7..cf33bb381 100644
--- a/src/extension/param/radiobutton.h
+++ b/src/extension/param/radiobutton.h
@@ -17,13 +17,13 @@
 #include <gtkmm/widget.h>
 
 #include "xml/document.h"
-#include <extension/extension-forward.h>
 
 #include "parameter.h"
 
 namespace Inkscape {
 namespace Extension {
 
+class Extension;
 
 
 // \brief  A class to represent a radiobutton parameter of an extension