diff --git a/tools/interactive/interactivetool_ml_jupyter_notebook.xml b/tools/interactive/interactivetool_ml_jupyter_notebook.xml
index aa42b8f63dc..0dd884b2ad5 100644
--- a/tools/interactive/interactivetool_ml_jupyter_notebook.xml
+++ b/tools/interactive/interactivetool_ml_jupyter_notebook.xml
@@ -56,7 +56,7 @@
         <conditional name="mode">
             <param name="mode_select" type="select" label="Do you already have a notebook?" help="If not, no problem we will provide you with a default one.">
                 <option value="scratch">Start with a fresh notebook</option>
-		<option value="previous">Load a previous notebook</option>
+                <option value="previous">Load a previous notebook</option>
             </param>
             <when value="scratch"/>
             <when value="previous">