diff --git a/src/vs/code/electron-main/window.ts b/src/vs/code/electron-main/window.ts
index 9ee3f1c5d1b021753a263ed17c86a1e976e28319..c47f23854eed9e6ec92e36b4c57844a1efc7d3c2 100644
--- a/src/vs/code/electron-main/window.ts
+++ b/src/vs/code/electron-main/window.ts
@@ -189,7 +189,7 @@ export class CodeWindow implements ICodeWindow {
 		this._win = new BrowserWindow(options);
 		this._id = this._win.id;
 
-		if (useCustomTitleStyle) {
+		if (isMacintosh && useCustomTitleStyle) {
 			this._win.setSheetOffset(22); // offset dialogs by the height of the custom title bar if we have any
 		}