diff --git a/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts b/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts
index 2805a9bc940..eff0189e1e8 100644
--- a/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts
+++ b/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts
@@ -299,8 +299,7 @@ export class TerminalInstance implements ITerminalInstance {
 
 	public setCursorBlink(blink: boolean): void {
 		if (this._xterm && this._xterm.cursorBlink !== blink) {
-			this._xterm.options.cursorBlink = blink;
-			this._xterm.cursorBlink = blink;
+			this._xterm.setOption('cursorBlink', blink);
 			this._xterm.refresh(0, this._xterm.rows - 1);
 		}
 	}