diff --git a/core/block.js b/core/block.js
index dc1edd6ce..15f106d3d 100644
--- a/core/block.js
+++ b/core/block.js
@@ -313,6 +313,7 @@ Blockly.Block.prototype.getDeveloperVariables;
  * @param {boolean} healStack If true, then try to heal any gap by connecting
  *     the next statement with the previous statement.  Otherwise, dispose of
  *     all children of this block.
+ * @suppress {checkTypes}
  */
 Blockly.Block.prototype.dispose = function(healStack) {
   if (!this.workspace) {
diff --git a/core/block_svg.js b/core/block_svg.js
index 92a7735c7..06bf90cd7 100644
--- a/core/block_svg.js
+++ b/core/block_svg.js
@@ -1009,6 +1009,7 @@ Blockly.BlockSvg.prototype.getSvgRoot = function() {
  *     the next statement with the previous statement.  Otherwise, dispose of
  *     all children of this block.
  * @param {boolean=} animate If true, show a disposal animation and sound.
+ * @suppress {checkTypes}
  */
 Blockly.BlockSvg.prototype.dispose = function(healStack, animate) {
   if (!this.workspace) {
diff --git a/core/bubble_dragger.js b/core/bubble_dragger.js
index c4cc6910d..9864f61af 100644
--- a/core/bubble_dragger.js
+++ b/core/bubble_dragger.js
@@ -92,6 +92,7 @@ Blockly.BubbleDragger = function(bubble, workspace) {
 /**
  * Sever all links from this object.
  * @package
+ * @suppress {checkTypes}
  */
 Blockly.BubbleDragger.prototype.dispose = function() {
   this.draggingBubble_ = null;
diff --git a/core/flyout_base.js b/core/flyout_base.js
index 349322715..61202150e 100644
--- a/core/flyout_base.js
+++ b/core/flyout_base.js
@@ -276,6 +276,7 @@ Blockly.Flyout.prototype.init = function(targetWorkspace) {
 /**
  * Dispose of this flyout.
  * Unlink from all DOM elements to prevent memory leaks.
+ * @suppress {checkTypes}
  */
 Blockly.Flyout.prototype.dispose = function() {
   this.hide();
diff --git a/core/grid.js b/core/grid.js
index 3311264c4..3b036f493 100644
--- a/core/grid.js
+++ b/core/grid.js
@@ -92,6 +92,7 @@ Blockly.Grid.prototype.scale_ = 1;
 /**
  * Dispose of this grid and unlink from the DOM.
  * @package
+ * @suppress {checkTypes}
  */
 Blockly.Grid.prototype.dispose = function() {
   this.gridPattern_ = null;
diff --git a/core/input.js b/core/input.js
index 22278605b..9326d05de 100644
--- a/core/input.js
+++ b/core/input.js
@@ -258,6 +258,7 @@ Blockly.Input.prototype.init = function() {
 
 /**
  * Sever all links to this input.
+ * @suppress {checkTypes}
  */
 Blockly.Input.prototype.dispose = function() {
   for (var i = 0, field; field = this.fieldRow[i]; i++) {
diff --git a/core/trashcan.js b/core/trashcan.js
index 0032e4712..e6e577a3a 100644
--- a/core/trashcan.js
+++ b/core/trashcan.js
@@ -303,6 +303,7 @@ Blockly.Trashcan.prototype.init = function(verticalSpacing) {
 /**
  * Dispose of this trash can.
  * Unlink from all DOM elements to prevent memory leaks.
+ * @suppress {checkTypes}
  */
 Blockly.Trashcan.prototype.dispose = function() {
   if (this.svgGroup_) {
diff --git a/core/workspace_dragger.js b/core/workspace_dragger.js
index 01b97955f..8d4d10568 100644
--- a/core/workspace_dragger.js
+++ b/core/workspace_dragger.js
@@ -55,6 +55,7 @@ Blockly.WorkspaceDragger = function(workspace) {
 /**
  * Sever all links from this object.
  * @package
+ * @suppress {checkTypes}
  */
 Blockly.WorkspaceDragger.prototype.dispose = function() {
   this.workspace_ = null;
diff --git a/core/workspace_svg.js b/core/workspace_svg.js
index d5d8143c6..aee610986 100644
--- a/core/workspace_svg.js
+++ b/core/workspace_svg.js
@@ -680,6 +680,7 @@ Blockly.WorkspaceSvg.prototype.createDom = function(opt_backgroundClass) {
 /**
  * Dispose of this workspace.
  * Unlink from all DOM elements to prevent memory leaks.
+ * @suppress {checkTypes}
  */
 Blockly.WorkspaceSvg.prototype.dispose = function() {
   // Stop rerendering.