diff --git a/frontend/src/components/editor-page/editor-pane/linter/frontmatter-linter.spec.ts b/frontend/src/components/editor-page/editor-pane/linter/frontmatter-linter.spec.ts
index 8e2a73d9d..09777246b 100644
--- a/frontend/src/components/editor-page/editor-pane/linter/frontmatter-linter.spec.ts
+++ b/frontend/src/components/editor-page/editor-pane/linter/frontmatter-linter.spec.ts
@@ -45,8 +45,8 @@ describe('FrontmatterLinter', () => {
       testFrontmatterLinter(
         '---\ntags: a\n---',
         {
-          from: 5,
-          to: 12,
+          from: 4,
+          to: 11,
           severity: 'warning'
         },
         'tags:\n- a'
@@ -56,8 +56,8 @@ describe('FrontmatterLinter', () => {
       testFrontmatterLinter(
         '---\ntags: 1\n---',
         {
-          from: 5,
-          to: 12,
+          from: 4,
+          to: 11,
           severity: 'warning'
         },
         'tags:\n- 1'
@@ -67,8 +67,8 @@ describe('FrontmatterLinter', () => {
       testFrontmatterLinter(
         '---\ntags: 123, a\n---',
         {
-          from: 5,
-          to: 17,
+          from: 4,
+          to: 16,
           severity: 'warning'
         },
         'tags:\n- 123\n- a'
diff --git a/frontend/src/components/editor-page/editor-pane/linter/frontmatter-linter.ts b/frontend/src/components/editor-page/editor-pane/linter/frontmatter-linter.ts
index 9eb567e55..3e6fce4b1 100644
--- a/frontend/src/components/editor-page/editor-pane/linter/frontmatter-linter.ts
+++ b/frontend/src/components/editor-page/editor-pane/linter/frontmatter-linter.ts
@@ -60,7 +60,7 @@ export class FrontmatterLinter implements Linter {
     const replacedText = 'tags:\n- ' + tags.join('\n- ')
     const tagsLineIndex = frontmatterLines.findIndex((value) => value.startsWith('tags: '))
     const linesBeforeTagsLine = frontmatterLines.slice(0, tagsLineIndex)
-    const from = startOfYaml + linesBeforeTagsLine.join('\n').length + 1
+    const from = startOfYaml + linesBeforeTagsLine.join('\n').length + linesBeforeTagsLine.length
     const to = from + frontmatterLines[tagsLineIndex].length
     return [
       {