diff --git a/demo/client.ts b/demo/client.ts
index 3a015710..2a0339eb 100644
--- a/demo/client.ts
+++ b/demo/client.ts
@@ -265,8 +265,7 @@ function initOptions(term: TerminalType): void {
     fontWeightBold: ['normal', 'bold', '100', '200', '300', '400', '500', '600', '700', '800', '900'],
     logLevel: ['debug', 'info', 'warn', 'error', 'off'],
     rendererType: ['dom', 'canvas'],
-    wordSeparator: null,
-    unicodeVersion: ['6', '11']
+    wordSeparator: null
   };
   const options = Object.keys((<any>term)._core.options);
   const booleanOptions = [];
diff --git a/src/Terminal.ts b/src/Terminal.ts
index 8ae36768..6a75979b 100644
--- a/src/Terminal.ts
+++ b/src/Terminal.ts
@@ -347,11 +347,6 @@ export class Terminal extends Disposable implements ITerminal, IDisposable, IInp
             this._windowsMode = undefined;
           }
           break;
-        case 'unicodeVersion':
-          if (this.unicodeService.activeVersion !== this.optionsService.options.unicodeVersion) {
-            this.unicodeService.activeVersion = this.optionsService.options.unicodeVersion;
-          }
-          break;
       }
     });
   }
diff --git a/src/common/services/OptionsService.ts b/src/common/services/OptionsService.ts
index 505d16e1..7cd111ac 100644
--- a/src/common/services/OptionsService.ts
+++ b/src/common/services/OptionsService.ts
@@ -52,7 +52,6 @@ export const DEFAULT_OPTIONS: ITerminalOptions = Object.freeze({
   screenKeys: false,
   cancelEvents: false,
   useFlowControl: false,
-  unicodeVersion: '6',
   wordSeparator: ' ()[]{}\',:;"`'
 });
 
diff --git a/src/common/services/Services.ts b/src/common/services/Services.ts
index ce24e5c1..ce7b33f7 100644
--- a/src/common/services/Services.ts
+++ b/src/common/services/Services.ts
@@ -238,7 +238,6 @@ export interface IPartialTerminalOptions {
   scrollSensitivity?: number;
   tabStopWidth?: number;
   theme?: ITheme;
-  unicodeVersion?: string;
   windowsMode?: boolean;
   wordSeparator?: string;
 }
@@ -273,7 +272,6 @@ export interface ITerminalOptions {
   scrollSensitivity: number;
   tabStopWidth: number;
   theme: ITheme;
-  unicodeVersion: string;
   windowsMode: boolean;
   wordSeparator: string;
 
diff --git a/typings/xterm.d.ts b/typings/xterm.d.ts
index 8a7464a6..d0479897 100644
--- a/typings/xterm.d.ts
+++ b/typings/xterm.d.ts
@@ -215,12 +215,6 @@ declare module 'xterm' {
      */
     theme?: ITheme;
 
-    /**
-     * Unicode version to be used for wcwidth. Default is version 6.
-     * New unicode versions can be registered through the `Terminal.unicode.register` API.
-     */
-    unicodeVersion?: string;
-
     /**
      * Whether "Windows mode" is enabled. Because Windows backends winpty and
      * conpty operate by doing line wrapping on their side, xterm.js does not
@@ -1173,9 +1167,14 @@ declare module 'xterm' {
    * Used to register custom Unicode versions with `Terminal.unicode.register`.
    */
   export interface IUnicodeVersionProvider {
-    /** String indicating the Unicode version provided. */
+    /**
+     * String indicating the Unicode version provided.
+     */
     readonly version: string;
-    /** Unicode version dependent wcwidth implementation. */
+    
+    /**
+     * Unicode version dependent wcwidth implementation.
+     */
     wcwidth(codepoint: number): 0 | 1 | 2;
   }
 
@@ -1187,13 +1186,14 @@ declare module 'xterm' {
      * Register a custom Unicode version provider.
      */
     register(provider: IUnicodeVersionProvider): void;
+
     /**
      * Registered Unicode versions.
      */
     readonly versions: ReadonlyArray<string>;
+
     /**
-     * Getter/setter for activate Unicode version.
-     * FIXME: Should we go with this instead of get/SetOption?
+     * Getter/setter for active Unicode version.
      */
     activeVersion: string;
   }