diff --git a/src/textEditor.ts b/src/textEditor.ts
index 8a4d79f5c0b..5cd990377d9 100644
--- a/src/textEditor.ts
+++ b/src/textEditor.ts
@@ -137,7 +137,7 @@ export class TextEditor {
   }
 
   static getLineMaxColumn(lineNumber: number): number {
-    if (lineNumber < 1 || lineNumber > TextEditor.getLineCount()) {
+    if (lineNumber < 0 || lineNumber > TextEditor.getLineCount()) {
       throw new Error('Illegal value ' + lineNumber + ' for `lineNumber`');
     }