3 files changed, 3 insertions, 3 deletions
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 {