7 files changed, 6 insertions, 8 deletions
diff --git a/src/ui/dialog/desktop-tracker.h b/src/ui/dialog/desktop-tracker.h
index 0c8af66bf..c219e8d98 100644
--- a/src/ui/dialog/desktop-tracker.h
+++ b/src/ui/dialog/desktop-tracker.h
@@ -16,7 +16,7 @@ class SPDesktop;
 
 namespace Inkscape {
 
-class Application;
+struct Application;
 
 namespace UI {
 namespace Dialog {
diff --git a/src/ui/dialog/dialog.h b/src/ui/dialog/dialog.h
index 025e9eb58..ec5d203bc 100644
--- a/src/ui/dialog/dialog.h
+++ b/src/ui/dialog/dialog.h
@@ -21,7 +21,7 @@ class SPDesktop;
 
 namespace Inkscape {
 class Selection;
-class Application;
+struct Application;
 }
 
 namespace Inkscape {
diff --git a/src/ui/dialog/livepatheffect-editor.cpp b/src/ui/dialog/livepatheffect-editor.cpp
index 7ecb6d5cd..e6bb9b43d 100644
--- a/src/ui/dialog/livepatheffect-editor.cpp
+++ b/src/ui/dialog/livepatheffect-editor.cpp
@@ -48,8 +48,6 @@
 #include "livepatheffect-add.h"
 
 namespace Inkscape {
-class Application;
-
 namespace UI {
 namespace Dialog {
 
diff --git a/src/ui/tool/control-point.h b/src/ui/tool/control-point.h
index 30efe8a27..27a0f8074 100644
--- a/src/ui/tool/control-point.h
+++ b/src/ui/tool/control-point.h
@@ -23,7 +23,7 @@
 #include "enums.h"
 
 class SPDesktop;
-class SPEventContext;
+struct SPEventContext;
 
 namespace Inkscape {
 namespace UI {
diff --git a/src/ui/widget/object-composite-settings.h b/src/ui/widget/object-composite-settings.h
index c7c09a816..bee9f09b9 100644
--- a/src/ui/widget/object-composite-settings.h
+++ b/src/ui/widget/object-composite-settings.h
@@ -24,7 +24,7 @@
 class SPDesktop;
 
 namespace Inkscape {
-class Application;
+struct Application;
 
 namespace UI {
 namespace Widget {
diff --git a/src/ui/widget/style-subject.h b/src/ui/widget/style-subject.h
index 47da91732..c2941d995 100644
--- a/src/ui/widget/style-subject.h
+++ b/src/ui/widget/style-subject.h
@@ -20,7 +20,7 @@
 class SPDesktop;
 class SPObject;
 class SPCSSAttr;
-class SPStyle;
+struct SPStyle;
 
 namespace Inkscape {
 class Selection;
diff --git a/src/ui/widget/style-swatch.h b/src/ui/widget/style-swatch.h
index 7e385e3df..2b9c32b2e 100644
--- a/src/ui/widget/style-swatch.h
+++ b/src/ui/widget/style-swatch.h
@@ -27,7 +27,7 @@
 #include "preferences.h"
 
 class SPUnit;
-class SPStyle;
+struct SPStyle;
 class SPCSSAttr;
 
 namespace Gtk {