diff --git a/src/vs/editor/contrib/suggest/suggestModel.ts b/src/vs/editor/contrib/suggest/suggestModel.ts
index a2eeafb5b87accb89aa8cb6403247e6258855a45..9a88e1ccc1df751c2381b79c608073e9d64e9df6 100644
--- a/src/vs/editor/contrib/suggest/suggestModel.ts
+++ b/src/vs/editor/contrib/suggest/suggestModel.ts
@@ -20,7 +20,7 @@ import { CancellationTokenSource } from 'vs/base/common/cancellation';
 import { IEditorWorkerService } from 'vs/editor/common/services/editorWorkerService';
 import { WordDistance } from 'vs/editor/contrib/suggest/wordDistance';
 import { EditorOption } from 'vs/editor/common/config/editorOptions';
-import { isLowSurrogate, isHighSurrogate } from 'vs/base/common/strings';
+import { isLowSurrogate, isHighSurrogate, getLeadingWhitespace } from 'vs/base/common/strings';
 import { IClipboardService } from 'vs/platform/clipboard/common/clipboardService';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
 import { ILogService } from 'vs/platform/log/common/log';
@@ -559,7 +559,8 @@ export class SuggestModel implements IDisposable {
 			return;
 		}
 
-		if (ctx.leadingWord.startColumn < this._context.leadingWord.startColumn) {
+		if (getLeadingWhitespace(ctx.leadingLineContent) !== getLeadingWhitespace(this._context.leadingLineContent)) {
+			// cancel IntelliSense when line start changes
 			// happens when the current word gets outdented
 			this.cancel();
 			return;