1 files changed, 1 insertions, 1 deletions

diff --git a/trace-graph.c b/trace-graph.c
index d309bc8..d8367ae 100644
--- a/trace-graph.c
+++ b/trace-graph.c
@@ -1695,7 +1695,7 @@ static void draw_plot_box(struct graph_info *ginfo, int i,
                            fill,
                            x1, y,
                            x2 - x1, size);
-        if (!thin && is_high_res(ginfo)) {
+        if (!thin && fill && is_high_res(ginfo)) {
                 gdk_draw_rectangle(ginfo->curr_pixmap,
                                    ginfo->draw->style->black_gc,
                                    FALSE,