diff --git a/index.html b/index.html
index c5a835e..55e40da 100644
--- a/index.html
+++ b/index.html
@@ -27182,7 +27182,7 @@ Y_{t} = \mu + Y_{t-1} + \varepsilon_t \quad \text{with} \quad \varepsilon_t = \
diff --git a/index.qmd b/index.qmd
index 68efbe0..e3cb3f7 100644
--- a/index.qmd
+++ b/index.qmd
@@ -2554,8 +2554,8 @@ pars_data %>%
geom_rect(aes(
ymin = 0,
ymax = value * 1.2,
- xmin = dates[1],
- xmax = dates[182],
+ xmin = sort(unique(dates))[1],
+ xmax = sort(unique(dates))[182],
fill = "Burn-In"
)) +
geom_line(aes(color = name), linewidth = linesize, show.legend = FALSE) +
