diff --git a/gtk/gtkcssstylepropertyprivate.h b/gtk/gtkcssstylepropertyprivate.h
index 342cdb712c..fb851899eb 100644
--- a/gtk/gtkcssstylepropertyprivate.h
+++ b/gtk/gtkcssstylepropertyprivate.h
@@ -85,7 +85,8 @@ void                    _gtk_css_style_property_print_value     (GtkCssStyleProp
 
 gboolean                _gtk_css_style_property_changes_affect_size
                                                                 (const GtkBitmask       *changes);
-                                                                 
+gboolean                _gtk_css_style_property_changes_affect_font
+                                                                (const GtkBitmask       *changes);
 
 G_END_DECLS
 
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index 92343265ee..585eaa4ad3 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -52,6 +52,7 @@
 #include "gtktypebuiltins.h"
 #include "gtktexthandleprivate.h"
 #include "gtkstylecontextprivate.h"
+#include "gtkcssstylepropertyprivate.h"
 
 #include "a11y/gtktextviewaccessible.h"
 
diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index c422172d81..a2a20b0d5c 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -48,6 +48,7 @@
 #include "gtkwidgetprivate.h"
 #include "gtkentryprivate.h"
 #include "gtkstylecontextprivate.h"
+#include "gtkcssstylepropertyprivate.h"
 #include "gtktypebuiltins.h"
 #include "gtkmain.h"
 #include "gtksettings.h"