diff --git a/R/check_dag.R b/R/check_dag.R
index 7cdb7f4a5..2d7bdb42b 100644
--- a/R/check_dag.R
+++ b/R/check_dag.R
@@ -31,9 +31,9 @@
 #' should be checked. Must be a valid name from the formulas provided in `...`.
 #' If not set, the first independent variable from the formulas is used.
 #' @param adjusted A character vector or formula with names of variables that
-#' are adjusted for in the model. If a model object is provided in `...`, any
-#' values in `adjusted` will be overwritten by the model's independent
-#' variables.
+#' are adjusted for in the model, e.g. `adjusted = c("x1", "x2")` or
+#' `adjusted = ~ x1 + x2`. If a model object is provided in `...`, any values in
+#' `adjusted` will be overwritten by the model's independent variables.
 #' @param latent A character vector with names of latent variables in the model.
 #' @param effect Character string, indicating which effect to check. Can be
 #' `"all"` (default), `"total"`, or `"direct"`.
diff --git a/man/check_dag.Rd b/man/check_dag.Rd
index a6e2c0ea3..f7c74ee18 100644
--- a/man/check_dag.Rd
+++ b/man/check_dag.Rd
@@ -33,9 +33,9 @@ should be checked. Must be a valid name from the formulas provided in \code{...}
 If not set, the first independent variable from the formulas is used.}
 
 \item{adjusted}{A character vector or formula with names of variables that
-are adjusted for in the model. If a model object is provided in \code{...}, any
-values in \code{adjusted} will be overwritten by the model's independent
-variables.}
+are adjusted for in the model, e.g. \code{adjusted = c("x1", "x2")} or
+\code{adjusted = ~ x1 + x2}. If a model object is provided in \code{...}, any values in
+\code{adjusted} will be overwritten by the model's independent variables.}
 
 \item{latent}{A character vector with names of latent variables in the model.}