diff --git a/R/regr_medae.R b/R/regr_medae.R
index 5050525..74fc8ee 100644
--- a/R/regr_medae.R
+++ b/R/regr_medae.R
@@ -2,7 +2,7 @@
 #'
 #' @details
 #' The Median Absolute Error is defined as \deqn{
-#'   \mathop{\mathrm{median}}_i \left| t_i - r_i \right|.
+#'   \mathop{\mathrm{median}} \left| t_i - r_i \right|.
 #' }{
 #'   median(abs(t - r)).
 #' }
diff --git a/R/regr_medse.R b/R/regr_medse.R
index ad5cb01..645a1d8 100644
--- a/R/regr_medse.R
+++ b/R/regr_medse.R
@@ -2,7 +2,7 @@
 #'
 #' @details
 #' The Median Squared Error is defined as \deqn{
-#'   \mathop{\mathrm{median}}_i \left[ \left( t_i - r_i \right)^2 \right].
+#'   \mathop{\mathrm{median}} \left[ \left( t_i - r_i \right)^2 \right].
 #' }{
 #'   median((t - r)^2).
 #' }