diff --git a/DESCRIPTION b/DESCRIPTION
index 2f49fd1..cc73124 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: vite
 Type: Package
 Title: Analyzing single-cell data using graphs
-Version: 0.4.1
+Version: 0.4.2
 Authors@R: "Pier Federico Gherardini <pfgherardini@parkerici.org> [aut, cre]"
 Description: This is a package for visualization and analysis of high-dimensional
     single-cell data using graphs
diff --git a/inst/shinyGUI/server.R b/inst/shinyGUI/server.R
index 199ae81..8cfe0f2 100644
--- a/inst/shinyGUI/server.R
+++ b/inst/shinyGUI/server.R
@@ -194,7 +194,7 @@ shinyServer(function(input, output, session) {
             out.dir <- file.path(working.directory, "scaffold_result")
             args.list <- list(
                     files.list = files.list,
-                    ref.file = input$scaffoldui_reference,
+                    ref.file = file.path(working.directory, input$scaffoldui_reference),
                     landmarks.data = landmarks.data,
                     col.names = input$scaffoldui_markers,
                     inter.cluster.weight.factor = input$scaffoldui_inter_cluster_weight,