diff --git a/R/mediation.R b/R/mediation.R
index 25d39fe9a..9c7720992 100644
--- a/R/mediation.R
+++ b/R/mediation.R
@@ -103,7 +103,6 @@
 #'     depress2 ~ treat + job_seek + econ_hard + sex + age + (1 | occp)
 #'   ),
 #'   data = jobs,
-#'   cores = 4,
 #'   refresh = 0
 #' ))
 #'
diff --git a/man/mediation.Rd b/man/mediation.Rd
index 5abfad540..364844056 100644
--- a/man/mediation.Rd
+++ b/man/mediation.Rd
@@ -136,7 +136,6 @@ m3 <- suppressWarnings(stan_mvmer(
     depress2 ~ treat + job_seek + econ_hard + sex + age + (1 | occp)
   ),
   data = jobs,
-  cores = 4,
   refresh = 0
 ))
 
diff --git a/vignettes/mediation.Rmd b/vignettes/mediation.Rmd
index d525921b1..a51ad03b6 100644
--- a/vignettes/mediation.Rmd
+++ b/vignettes/mediation.Rmd
@@ -84,7 +84,6 @@ m3 <- stan_mvmer(
     depress2 ~ treat + job_seek + econ_hard + sex + age + (1 | occp)
   ),
   data = jobs,
-  cores = 4,
   refresh = 0
 )
 ```