diff --git a/accessible/app.component.js b/accessible/app.component.js
index 763a13c11..9de1cc60a 100644
--- a/accessible/app.component.js
+++ b/accessible/app.component.js
@@ -47,7 +47,7 @@ blocklyApp.AppView = ng.core
     <label aria-hidden="true" hidden id="blockly-block-menu">{{'BLOCK_ACTION_LIST'|translate}}</label>
     <label aria-hidden="true" hidden id="blockly-block-summary">{{'BLOCK_SUMMARY'|translate}}</label>
     <label aria-hidden="true" hidden id="blockly-button">{{'BUTTON'|translate}}</label>
-    <label aria-hidden="true" hidden id="blockly-disabled">{{'UNAVAILABLE'|translate}}</label>
+    <label aria-hidden="true" hidden id="blockly-disabled">{{'DISABLED'|translate}}</label>
     <label aria-hidden="true" hidden id="blockly-menu">{{'OPTION_LIST'|translate}}</label>
     `,
     directives: [blocklyApp.ToolboxComponent, blocklyApp.WorkspaceComponent],
diff --git a/accessible/messages.js b/accessible/messages.js
index 8014beee2..e4ca99d5f 100644
--- a/accessible/messages.js
+++ b/accessible/messages.js
@@ -50,7 +50,7 @@ Blockly.Msg.ARGUMENT_INPUT = 'argument input';
 Blockly.Msg.ARGUMENT_BLOCK_ACTION_LIST = 'argument block action list';
 Blockly.Msg.TEXT = 'text';
 Blockly.Msg.BUTTON = 'button';
-Blockly.Msg.UNAVAILABLE = 'unavailable';
+Blockly.Msg.DISABLED = 'disabled';
 Blockly.Msg.CURRENT_ARGUMENT_VALUE = 'current argument value:';
 Blockly.Msg.COPY_TO_WORKSPACE = 'copy to workspace';
 Blockly.Msg.COPY_TO_CLIPBOARD = 'copy to clipboard';