diff --git a/src/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/pandas.js b/src/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/pandas.js
index 74994ba0e..950b3e777 100644
--- a/src/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/pandas.js
+++ b/src/jupyter_contrib_nbextensions/nbextensions/snippets_menu/snippets_submenus_python/pandas.js
@@ -116,11 +116,11 @@ define({
             'sub-menu' : [
                 {
                     'name' : 'Split-apply-combine (sum)',
-                    'snippet' : ['df['label_count'] = df.groupby('label', as_index=False)['label'].transform(lambda x: x.count())',],
+                    'snippet' : ['df["label_count"] = df.groupby("label", as_index=False)["label"].transform(lambda x: x.count())',],
                 },
                 {
                     'name' : 'Split-apply-combine (mean)',
-                    'snippet' : ['df['label_mean'] = df.groupby('label', as_index=False)['label'].transform(lambda x: x.mean())',],
+                    'snippet' : ['df["label_mean"] = df.groupby("label", as_index=False)["label"].transform(lambda x: x.mean())',],
                 },
             ],
         },