diff --git a/core/components/tree/basenode.js b/core/components/tree/basenode.js
index 6e10d71b8..bd8485912 100644
--- a/core/components/tree/basenode.js
+++ b/core/components/tree/basenode.js
@@ -114,7 +114,7 @@ Blockly.utils.object.inherits(Blockly.tree.BaseNode, Blockly.Component);
  *            cssExpandedFolderIcon:string,
  *            cssCollapsedFolderIcon:string,
  *            cssFileIcon:string,
- *            cssSelectedRow:string,
+ *            cssSelectedRow:string
  *          }}
  */
 Blockly.tree.BaseNode.Config;
diff --git a/core/keyboard_nav/ast_node.js b/core/keyboard_nav/ast_node.js
index e869493b4..7669aa670 100644
--- a/core/keyboard_nav/ast_node.js
+++ b/core/keyboard_nav/ast_node.js
@@ -67,7 +67,7 @@ Blockly.ASTNode = function(type, location, opt_params) {
 
 /**
  * @typedef {{
- *     wsCoordinate: Blockly.utils.Coordinate,
+ *     wsCoordinate: Blockly.utils.Coordinate
  * }}
  */
 Blockly.ASTNode.Params;
diff --git a/core/registry.js b/core/registry.js
index ec7224c2c..fa533d4cf 100644
--- a/core/registry.js
+++ b/core/registry.js
@@ -42,7 +42,10 @@ Blockly.registry.DEFAULT = 'default';
  * @template T
  */
 Blockly.registry.Type = function(name) {
-  /** @private {string} */
+  /**
+   * @type {string}
+   * @private
+   */
   this.name_ = name;
 };