3 files changed, 3 insertions, 3 deletions
diff --git a/src/ui/widget/registered-widget.h b/src/ui/widget/registered-widget.h
index 2a7843a51..fa35b815e 100644
--- a/src/ui/widget/registered-widget.h
+++ b/src/ui/widget/registered-widget.h
@@ -32,7 +32,7 @@
 
 #include <gtkmm/checkbutton.h>
 
-class SPUnit;
+struct SPUnit;
 class SPDocument;
 
 namespace Gtk {
diff --git a/src/ui/widget/selected-style.h b/src/ui/widget/selected-style.h
index 6d5222429..9b78cb17f 100644
--- a/src/ui/widget/selected-style.h
+++ b/src/ui/widget/selected-style.h
@@ -40,7 +40,7 @@
 #include "helper/units.h"
 
 class SPDesktop;
-class SPUnit;
+struct SPUnit;
 
 namespace Inkscape {
 namespace UI {
diff --git a/src/ui/widget/style-swatch.h b/src/ui/widget/style-swatch.h
index 2b9c32b2e..d7bab3732 100644
--- a/src/ui/widget/style-swatch.h
+++ b/src/ui/widget/style-swatch.h
@@ -26,7 +26,7 @@
 #include "button.h"
 #include "preferences.h"
 
-class SPUnit;
+struct SPUnit;
 struct SPStyle;
 class SPCSSAttr;