diff --git a/rtbuf_widget.h b/rtbuf_widget.h
index 319d859..07cca1d 100644
--- a/rtbuf_widget.h
+++ b/rtbuf_widget.h
@@ -19,12 +19,26 @@
#include "rtbuf.h"
-#define RTBUF_WIDGET_TYPE (rtbuf_widget_get_type())
-#define RTBUF_WIDGET(object) (G_TYPE_CHECK_INSTANCE_CAST((object), RTBUF_WIDGET_TYPE, RtbufWidget))
-#define RTBUF_WIDGET_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), RTBUF_WIDGET_TYPE, RtbufWidgetClass))
-#define IS_RTBUF_WIDGET(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), RTBUF_WIDGET_TYPE))
-#define IS_RTBUF_WIDGET_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), RTBUF_WIDGET_TYPE))
-#define RTBUF_WIDGET_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), RTBUF_WIDGET_TYPE, RtbufWidgetClass))
+#define RTBUF_WIDGET_TYPE \
+ (rtbuf_widget_get_type())
+
+#define RTBUF_WIDGET(object) \
+ (G_TYPE_CHECK_INSTANCE_CAST((object), RTBUF_WIDGET_TYPE, \
+ RtbufWidget))
+
+#define RTBUF_WIDGET_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass), RTBUF_WIDGET_TYPE, \
+ RtbufWidgetClass))
+
+#define IS_RTBUF_WIDGET(object) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((object), RTBUF_WIDGET_TYPE))
+
+#define IS_RTBUF_WIDGET_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass), RTBUF_WIDGET_TYPE))
+
+#define RTBUF_WIDGET_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS((obj), RTBUF_WIDGET_TYPE, \
+ RtbufWidgetClass))
typedef struct _RtbufWidget RtbufWidget;
typedef struct _RtbufWidgetClass RtbufWidgetClass;