diff --git a/fixtures/typings-test/typings-test.ts b/fixtures/typings-test/typings-test.ts
index 928ca2389..9b8e4da27 100644
--- a/fixtures/typings-test/typings-test.ts
+++ b/fixtures/typings-test/typings-test.ts
@@ -140,6 +140,7 @@ namespace methods_core {
       const r18: (data: string) => void = t.getOption('handler');
       const r19: string = t.getOption('bellSound');
       const r20: string = t.getOption('bellStyle');
+      const r21: boolean = t.getOption('enableBold');
     }
     {
       const t: Terminal = new Terminal();
@@ -152,6 +153,7 @@ namespace methods_core {
       t.setOption('cursorBlink', true);
       t.setOption('debug', true);
       t.setOption('disableStdin', true);
+      t.setOption('enableBold', true);
       t.setOption('popOnBell', true);
       t.setOption('screenKeys', true);
       t.setOption('useFlowControl', true);
diff --git a/typings/xterm.d.ts b/typings/xterm.d.ts
index de2a261b3..d1fd14de9 100644
--- a/typings/xterm.d.ts
+++ b/typings/xterm.d.ts
@@ -41,6 +41,11 @@ interface ITerminalOptions {
    */
   disableStdin?: boolean;
 
+  /**
+   * Whether to enable the rendering of bold text.
+   */
+  enableBold?: boolean;
+
   /**
    * The font size used to render text.
    */
@@ -397,7 +402,7 @@ declare module 'xterm' {
      * Retrieves an option's value from the terminal.
      * @param key The option key.
      */
-    getOption(key: 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell'): boolean;
+    getOption(key: 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'enableBold' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell'): boolean;
     /**
      * Retrieves an option's value from the terminal.
      * @param key The option key.
@@ -447,7 +452,7 @@ declare module 'xterm' {
      * @param key The option key.
      * @param value The option value.
      */
-    setOption(key: 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell', value: boolean): void;
+    setOption(key: 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'debug' | 'disableStdin' | 'enableBold' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell', value: boolean): void;
     /**
      * Sets an option on the terminal.
      * @param key The option key.