diff --git a/R/api_create_study.R b/R/api_create_study.R
index f225e88..f9cb052 100644
--- a/R/api_create_study.R
+++ b/R/api_create_study.R
@@ -1,4 +1,4 @@
-api__minimization_pocock <- function(
+api_minimization_pocock <- function(
     # nolint: cyclocomp_linter.
     identifier, name, method, arms, covariates, p, req, res) {
   audit_log_set_event_type("study_create", req)
diff --git a/R/api_randomize.R b/R/api_randomize.R
index 18db0f3..76da9c2 100644
--- a/R/api_randomize.R
+++ b/R/api_randomize.R
@@ -26,7 +26,7 @@ parse_pocock_parameters <-
     return(params)
   }
 
-api__randomize_patient <- function(study_id, current_state, req, res) {
+api_randomize_patient <- function(study_id, current_state, req, res) {
   audit_log_set_event_type("randomize_patient", req)
   collection <- checkmate::makeAssertCollection()
 
diff --git a/inst/plumber/unbiased_api/study.R b/inst/plumber/unbiased_api/study.R
index bc5c3a3..528f284 100644
--- a/inst/plumber/unbiased_api/study.R
+++ b/inst/plumber/unbiased_api/study.R
@@ -21,7 +21,7 @@
 unbiased:::wrap_endpoint(function(
     identifier, name, method, arms, covariates, p, req, res) {
   return(
-    unbiased:::api__minimization_pocock(
+    unbiased:::api_minimization_pocock(
       identifier, name, method, arms, covariates, p, req, res
     )
   )
@@ -40,7 +40,7 @@ unbiased:::wrap_endpoint(function(
 
 unbiased:::wrap_endpoint(function(study_id, current_state, req, res) {
   return(
-    unbiased:::api__randomize_patient(study_id, current_state, req, res)
+    unbiased:::api_randomize_patient(study_id, current_state, req, res)
   )
 })