bug fix
diff --git a/tests/visual_tests/collapse_rows_pdf.Rmd b/tests/visual_tests/collapse_rows_pdf.Rmd
index 795bbe1..a2f1138 100644
--- a/tests/visual_tests/collapse_rows_pdf.Rmd
+++ b/tests/visual_tests/collapse_rows_pdf.Rmd
@@ -13,5 +13,5 @@
 kable(collapse_rows_dt, "latex", align = "c", booktabs = T) %>%
   kable_styling() %>%
   column_spec(1, bold=T, width = "2em") %>%
-  collapse_rows(1:2)
+  collapse_rows(1)
 ```