diff --git a/lib/block-and-line-comment.js b/lib/block-and-line-comment.js
index fdccad4..553fab8 100644
--- a/lib/block-and-line-comment.js
+++ b/lib/block-and-line-comment.js
@@ -14,8 +14,10 @@ function toggle(){
   const editorView = atom.views.getView(editor);
   const buffer = editor.getBuffer();
   const selections = editor.getSelections();
+  const grammar = editor.getGrammar().name;
+  const exceptions = ['Shell Script'];
 
-  if (monoline(editor.getGrammar().name)||(selections.length===1 && selectionIsEmpty(selections[0])))
+  if (monoline(grammar)||(selections.length===1 && selectionIsEmpty(selections[0]))||(exceptions.indexOf(grammar) > -1))
     atom.commands.dispatch(editorView, 'editor:toggle-line-comments')
   else
     cblock(editor,editorView,buffer,selections)