diff --git a/R/gs_info_ahr.R b/R/gs_info_ahr.R
index 05c2a513..4fb7f0ab 100644
--- a/R/gs_info_ahr.R
+++ b/R/gs_info_ahr.R
@@ -21,8 +21,8 @@
 #' Based on piecewise enrollment rate, failure rate, and dropout rates computes
 #' approximate information and effect size using an average hazard ratio model.
 #'
-#' @param enroll_rate Enrollment rates from \code{define_enroll_rate()}.
-#' @param fail_rate Failure and dropout rates from \code{define_fail_rate()}.
+#' @param enroll_rate Enrollment rates from [define_enroll_rate()].
+#' @param fail_rate Failure and dropout rates from [define_fail_rate()].
 #' @param ratio Experimental:Control randomization ratio.
 #' @param event Targeted minimum events at each analysis.
 #' @param analysis_time Targeted minimum study duration at each analysis.
diff --git a/R/gs_update_ahr.R b/R/gs_update_ahr.R
index 2f4dd728..7307adb6 100644
--- a/R/gs_update_ahr.R
+++ b/R/gs_update_ahr.R
@@ -18,7 +18,7 @@
 
 #' Group sequential design using average hazard ratio under non-proportional hazards
 #'
-#' @param x A design created by either \code{gs_design_ahr} or \code{gs_power_ahr}.
+#' @param x A design created by either [gs_design_ahr()] or [gs_power_ahr()].
 #' @param alpha Type I error for the updated design.
 #' @param ustime Default is NULL in which case upper bound spending time is determined by timing.
 #' Otherwise, this should be a vector of length k (total number of analyses)
diff --git a/man/gs_create_arm.Rd b/man/gs_create_arm.Rd
index 35de43db..12a755be 100644
--- a/man/gs_create_arm.Rd
+++ b/man/gs_create_arm.Rd
@@ -7,9 +7,9 @@
 gs_create_arm(enroll_rate, fail_rate, ratio, total_time = 1e+06)
 }
 \arguments{
-\item{enroll_rate}{Enrollment rates from \code{define_enroll_rate()}.}
+\item{enroll_rate}{Enrollment rates from \code{\link[=define_enroll_rate]{define_enroll_rate()}}.}
 
-\item{fail_rate}{Failure and dropout rates from \code{define_fail_rate()}.}
+\item{fail_rate}{Failure and dropout rates from \code{\link[=define_fail_rate]{define_fail_rate()}}.}
 
 \item{ratio}{Experimental:Control randomization ratio.}
 
diff --git a/man/gs_info_ahr.Rd b/man/gs_info_ahr.Rd
index 192b0f86..f5dcc73a 100644
--- a/man/gs_info_ahr.Rd
+++ b/man/gs_info_ahr.Rd
@@ -15,9 +15,9 @@ gs_info_ahr(
 )
 }
 \arguments{
-\item{enroll_rate}{Enrollment rates from \code{define_enroll_rate()}.}
+\item{enroll_rate}{Enrollment rates from \code{\link[=define_enroll_rate]{define_enroll_rate()}}.}
 
-\item{fail_rate}{Failure and dropout rates from \code{define_fail_rate()}.}
+\item{fail_rate}{Failure and dropout rates from \code{\link[=define_fail_rate]{define_fail_rate()}}.}
 
 \item{ratio}{Experimental:Control randomization ratio.}
 
diff --git a/man/gs_update_ahr.Rd b/man/gs_update_ahr.Rd
index ab2c5c49..8f707b90 100644
--- a/man/gs_update_ahr.Rd
+++ b/man/gs_update_ahr.Rd
@@ -13,7 +13,7 @@ gs_update_ahr(
 )
 }
 \arguments{
-\item{x}{A design created by either \code{gs_design_ahr} or \code{gs_power_ahr}.}
+\item{x}{A design created by either \code{\link[=gs_design_ahr]{gs_design_ahr()}} or \code{\link[=gs_power_ahr]{gs_power_ahr()}}.}
 
 \item{alpha}{Type I error for the updated design.}