diff --git a/R/mdt_simple.R b/R/mdt_simple.R
index faf1145..f51ee5a 100644
--- a/R/mdt_simple.R
+++ b/R/mdt_simple.R
@@ -28,7 +28,7 @@
 #'
 #'   with \eqn{c} the total effect of \eqn{X} on \eqn{Y}, \eqn{c'} the direct of
 #'   \eqn{X} on \eqn{Y}, and \eqn{ab} the indirect effect of \eqn{X} on \eqn{Y}
-#'   through {M} (see Models section).
+#'   through \eqn{M} (see Models section).
 #'
 #'   To assess whether the indirect effect is different from the null, one has
 #'   to assess the significance against the null for both \eqn{a} (the effect of
diff --git a/man-roxygen/within_details.R b/man-roxygen/within_details.R
index 54e1274..88fec2c 100644
--- a/man-roxygen/within_details.R
+++ b/man-roxygen/within_details.R
@@ -15,7 +15,7 @@
 #'
 #'   with \eqn{c} the total effect of \eqn{X} on \eqn{Y}, \eqn{c'} the direct of
 #'   \eqn{X} on \eqn{Y}, and \eqn{ab} the indirect effect of \eqn{X} on \eqn{Y}
-#'   through {M} (see Models section).
+#'   through \eqn{M} (see Models section).
 #'
 #'   To assess whether the indirect effect is different from the null, one has
 #'   to assess the significance against the null for both \eqn{a} (the effect of
diff --git a/man/mdt_simple.Rd b/man/mdt_simple.Rd
index f4e8776..572661d 100644
--- a/man/mdt_simple.Rd
+++ b/man/mdt_simple.Rd
@@ -61,7 +61,7 @@ The total effect of \eqn{X} on \eqn{Y} can be described as follows:
 
 with \eqn{c} the total effect of \eqn{X} on \eqn{Y}, \eqn{c'} the direct of
 \eqn{X} on \eqn{Y}, and \eqn{ab} the indirect effect of \eqn{X} on \eqn{Y}
-through {M} (see Models section).
+through \eqn{M} (see Models section).
 
 To assess whether the indirect effect is different from the null, one has
 to assess the significance against the null for both \eqn{a} (the effect of
diff --git a/man/mdt_within.Rd b/man/mdt_within.Rd
index 4c0ee79..0d8d64d 100644
--- a/man/mdt_within.Rd
+++ b/man/mdt_within.Rd
@@ -73,7 +73,7 @@ conceptually described as follows:
 
 with \eqn{c} the total effect of \eqn{X} on \eqn{Y}, \eqn{c'} the direct of
 \eqn{X} on \eqn{Y}, and \eqn{ab} the indirect effect of \eqn{X} on \eqn{Y}
-through {M} (see Models section).
+through \eqn{M} (see Models section).
 
 To assess whether the indirect effect is different from the null, one has
 to assess the significance against the null for both \eqn{a} (the effect of
diff --git a/man/mdt_within_wide.Rd b/man/mdt_within_wide.Rd
index abcca44..7fcf2fc 100644
--- a/man/mdt_within_wide.Rd
+++ b/man/mdt_within_wide.Rd
@@ -70,7 +70,7 @@ conceptually described as follows:
 
 with \eqn{c} the total effect of \eqn{X} on \eqn{Y}, \eqn{c'} the direct of
 \eqn{X} on \eqn{Y}, and \eqn{ab} the indirect effect of \eqn{X} on \eqn{Y}
-through {M} (see Models section).
+through \eqn{M} (see Models section).
 
 To assess whether the indirect effect is different from the null, one has
 to assess the significance against the null for both \eqn{a} (the effect of