diff --git a/DESCRIPTION b/DESCRIPTION
index 05b76de..5feabd0 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: CodelistGenerator
 Title: Identify Relevant Clinical Codes and Evaluate Their Use
-Version: 3.4.0
+Version: 3.4.0.900
 Authors@R: c(
     person("Edward", "Burn", email = "edward.burn@ndorms.ox.ac.uk", 
     role = c("aut", "cre"),
diff --git a/R/getRoutes.R b/R/getRoutes.R
index c32b8da..3f72451 100644
--- a/R/getRoutes.R
+++ b/R/getRoutes.R
@@ -31,7 +31,7 @@ getRouteCategories <- function(cdm) {
 
     # relate does form concept id with the classification established by
     # doseFormToRoute
-    doseRouteData <- get("doseFormToRoute")
+    doseRouteData <- CodelistGenerator::doseFormToRoute
 
     routeCategory <- cdm$concept_relationship |>
       # get dose form available in the cdm
diff --git a/R/stratifyByRoute.R b/R/stratifyByRoute.R
index 98a371f..45ef32e 100644
--- a/R/stratifyByRoute.R
+++ b/R/stratifyByRoute.R
@@ -43,7 +43,7 @@ stratifyByRouteCategory <- function(x, cdm, keepOriginal = FALSE){
   }
   checkmate::assertLogical(keepOriginal, len = 1)
 
-  doseRouteData <- get("doseFormToRoute")
+  doseRouteData <- CodelistGenerator::doseFormToRoute
   tableCodelist <- paste0(omopgenerics::uniqueTableName(),
                           omopgenerics::uniqueId())
 
diff --git a/R/subsetOnRouteCategory.R b/R/subsetOnRouteCategory.R
index d460677..b3aa545 100644
--- a/R/subsetOnRouteCategory.R
+++ b/R/subsetOnRouteCategory.R
@@ -44,7 +44,7 @@ subsetOnRouteCategory <- function(x, cdm, routeCategory){
     cli::cli_abort("routeCategory must be a character vector")
   }
 
-  doseRouteData <- get("doseFormToRoute")
+  doseRouteData <- CodelistGenerator::doseFormToRoute
 
   tableCodelist <- paste0(omopgenerics::uniqueTableName(),
                           omopgenerics::uniqueId())