diff --git a/src/vs/workbench/contrib/terminal/browser/xterm/markNavigationAddon.ts b/src/vs/workbench/contrib/terminal/browser/xterm/markNavigationAddon.ts
index 1623830822a..499e1d2f57d 100644
--- a/src/vs/workbench/contrib/terminal/browser/xterm/markNavigationAddon.ts
+++ b/src/vs/workbench/contrib/terminal/browser/xterm/markNavigationAddon.ts
@@ -282,6 +282,11 @@ export class MarkNavigationAddon extends Disposable implements IMarkTracker, ITe
 			}
 			const startLine = command.marker.line - (command.getPromptRowCount() - 1);
 			const decorationCount = toLineIndex(command.endMarker) - startLine;
+			// Abort if the command is too long, this limitation can be lifted when
+			// xtermjs/xterm.js#4911 is handled.
+			if (decorationCount > 200) {
+				return;
+			}
 			for (let i = 0; i < decorationCount; i++) {
 				const decoration = this._terminal.registerDecoration({
 					marker: this._createMarkerForOffset(startLine, i)