diff --git a/src/giggle-diff-view.h b/src/giggle-diff-view.h
index de5fe02..9ef33b5 100644
--- a/src/giggle-diff-view.h
+++ b/src/giggle-diff-view.h
@@ -23,6 +23,7 @@
 
 #include <glib-object.h>
 #include <gtk/gtk.h>
+#include <gtksourceview/gtksourcebuffer.h>
 #include <gtksourceview/gtksourceview.h>
 #include <gtksourceview/gtksourcelanguagemanager.h>
 
diff --git a/src/giggle-view-file.c b/src/giggle-view-file.c
index 7746225..7b74c0a 100644
--- a/src/giggle-view-file.c
+++ b/src/giggle-view-file.c
@@ -42,6 +42,7 @@
 
 #include <gtksourceview/gtksourcelanguagemanager.h>
 #include <gtksourceview/gtksourceview.h>
+#include <gtksourceview/gtksourcebuffer.h>
 
 #define GIGGLE_TYPE_VIEW_FILE_SNAPSHOT            (giggle_view_file_snapshot_get_type ())
 #define GIGGLE_VIEW_FILE_SNAPSHOT(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIGGLE_TYPE_VIEW_FILE_SNAPSHOT, GiggleViewFileSnapshot))