diff --git a/src/WindowsInstaller/FreeCAD_WindowsInstaller.nsi b/src/WindowsInstaller/FreeCAD_WindowsInstaller.nsi
index 59a4cce667..21ca2208b7 100644
--- a/src/WindowsInstaller/FreeCAD_WindowsInstaller.nsi
+++ b/src/WindowsInstaller/FreeCAD_WindowsInstaller.nsi
@@ -124,7 +124,7 @@ function un.onInit
 	SetShellVarContext all
  
 	#Verify the uninstaller - last chance to back out
-	MessageBox MB_OKCANCEL "Permanantly remove ${APPNAME}?" IDOK next
+	MessageBox MB_OKCANCEL "Permanantly remove ${APPNAME}?" /SD IDOK IDOK next
 		Abort
 	next:
 	!insertmacro VerifyUserIsAdmin
diff --git a/src/WindowsInstaller/FreeCAD_x64_WindowsInstaller.nsi b/src/WindowsInstaller/FreeCAD_x64_WindowsInstaller.nsi
index 975a4843e5..184d922617 100644
--- a/src/WindowsInstaller/FreeCAD_x64_WindowsInstaller.nsi
+++ b/src/WindowsInstaller/FreeCAD_x64_WindowsInstaller.nsi
@@ -159,7 +159,7 @@ function un.onInit
 	SetShellVarContext all
 
 	#Verify the uninstaller - last chance to back out
-	MessageBox MB_OKCANCEL "Permanantly remove ${APPNAME}?" IDOK next
+	MessageBox MB_OKCANCEL "Permanantly remove ${APPNAME}?" /SD IDOK IDOK next
 		Abort
 	next:
 	!insertmacro VerifyUserIsAdmin