diff --git a/README.Rmd b/README.Rmd
index c42c76e..5f7fcbd 100755
--- a/README.Rmd
+++ b/README.Rmd
@@ -155,7 +155,7 @@ legend(
 ### Comparison to TWFE
 
 ```{r plot-compare, fig.cap="TWFE and Two-Stage estimates of Event-Study", fig.width=8, fig.height=5, dpi=300}
-twfe <- feols(dep_var ~ i(rel_year, ref = c(Inf)) | unit + year, data = df_het)
+twfe <- feols(dep_var ~ i(rel_year, ref = c(Inf, -1)) | unit + year, data = df_het)
 
 fixest::iplot(
   list(es, twfe),
diff --git a/README.md b/README.md
index 97eaa7e..7f4075c 100755
--- a/README.md
+++ b/README.md
@@ -218,11 +218,7 @@ Event-study plot with example data
 ### Comparison to TWFE
 
 ``` r
-twfe <- feols(dep_var ~ i(rel_year, ref = c(Inf)) | unit + year, data = df_het)
-#> The variable 'rel_year::20' has been removed because of collinearity (see $collin.var).
-```
-
-``` r
+twfe <- feols(dep_var ~ i(rel_year, ref = c(Inf, -1)) | unit + year, data = df_het)
 
 fixest::iplot(
   list(es, twfe),
diff --git a/man/figures/README-plot-compare-1.png b/man/figures/README-plot-compare-1.png
index 4b1f2e1..1073262 100644
Binary files a/man/figures/README-plot-compare-1.png and b/man/figures/README-plot-compare-1.png differ