diff --git a/core/misc/autocomplete.js b/core/misc/autocomplete.js
index aa3311d08d..e119be6f5c 100644
--- a/core/misc/autocomplete.js
+++ b/core/misc/autocomplete.js
@@ -20,7 +20,7 @@
       if (character === '"') {
         current += character;
         quote = !quote;
-      } else if (character === ',' && !quote) {
+      } else if (character === '`' && !quote) {
         result.push(current.trim());
         current = '';
       } else {
@@ -100,7 +100,7 @@
 
     terms.push(ui.item.value);
 
-    event.target.value = terms.join(', ');
+    event.target.value = terms.join('` ');
 
     return false;
   }
@@ -161,4 +161,4 @@
   };
 
   Drupal.autocomplete = autocomplete;
-})(jQuery, Drupal);
\ No newline at end of file
+})(jQuery, Drupal);
diff --git a/core/modules/node/node.js b/core/modules/node/node.js
index fc2da88183..1a0fb37575 100644
--- a/core/modules/node/node.js
+++ b/core/modules/node/node.js
@@ -39,4 +39,5 @@
       });
     }
   };
-})(jQuery, Drupal, drupalSettings);
\ No newline at end of file
+})(jQuery, Drupal, drupalSettings);
+