diff --git a/eeshow/gui/history.c b/eeshow/gui/history.c
index 1eb4ce9..c2728e3 100644
--- a/eeshow/gui/history.c
+++ b/eeshow/gui/history.c
@@ -36,10 +36,6 @@ static void hide_history(struct gui_ctx *ctx)
 }
 
 
-#define	RGBA(r, g, b, a)	((struct color) { (r), (g), (b), (a) })
-#define	COLOR(color)		RGBA(color)
-
-
 static void set_history_style(struct gui_hist *h, bool current)
 {
 	struct gui_ctx *ctx = h->ctx;
diff --git a/eeshow/gui/style.h b/eeshow/gui/style.h
index a5e6d4d..de85b9b 100644
--- a/eeshow/gui/style.h
+++ b/eeshow/gui/style.h
@@ -27,6 +27,10 @@
 #define	BG_OLD		1.0, 0.8, 0.8, 0.8
 
 
+#define RGBA(r, g, b, a)	((struct color) { (r), (g), (b), (a) })
+#define COLOR(color)		RGBA(color)
+
+
 extern struct overlay_style overlay_style_default;
 extern struct overlay_style overlay_style_dense;
 extern struct overlay_style overlay_style_diff_new;