diff --git a/Source/Modules/UIModules/PrefUI/VwrPrefPaneDictionary.swift b/Source/Modules/UIModules/PrefUI/VwrPrefPaneDictionary.swift
index 910d817d..5d463d57 100644
--- a/Source/Modules/UIModules/PrefUI/VwrPrefPaneDictionary.swift
+++ b/Source/Modules/UIModules/PrefUI/VwrPrefPaneDictionary.swift
@@ -71,6 +71,7 @@ struct VwrPrefPaneDictionary: View {
               Self.dlgOpenPath.showsResizeIndicator = true
               Self.dlgOpenPath.showsHiddenFiles = true
               Self.dlgOpenPath.canChooseFiles = false
+              Self.dlgOpenPath.allowsMultipleSelection = false
               Self.dlgOpenPath.canChooseDirectories = true
 
               let bolPreviousFolderValidity = LMMgr.checkIfSpecifiedUserDataFolderValid(
diff --git a/Source/Modules/WindowControllers/CtlPrefWindow.swift b/Source/Modules/WindowControllers/CtlPrefWindow.swift
index fa398b7a..a022088c 100644
--- a/Source/Modules/WindowControllers/CtlPrefWindow.swift
+++ b/Source/Modules/WindowControllers/CtlPrefWindow.swift
@@ -246,6 +246,7 @@ class CtlPrefWindow: NSWindowController {
     dlgOpenPath.showsHiddenFiles = true
     dlgOpenPath.canChooseFiles = false
     dlgOpenPath.canChooseDirectories = true
+    dlgOpenPath.allowsMultipleSelection = false
 
     let bolPreviousFolderValidity = LMMgr.checkIfSpecifiedUserDataFolderValid(
       PrefMgr.shared.userDataFolderSpecified.expandingTildeInPath)