diff --git a/.github/workflows/i18n-update-core.yaml b/.github/workflows/i18n-update-core.yaml
index 5f0985b93..38898f014 100644
--- a/.github/workflows/i18n-update-core.yaml
+++ b/.github/workflows/i18n-update-core.yaml
@@ -43,7 +43,7 @@ jobs:
         env:
           PLAYWRIGHT_TEST_URL: http://localhost:5173
       - name: Update translations
-        run: pnpm locale && pnpm format
+        run: pnpm locale && pnpm fix-i18n-node-defs && pnpm format
         env:
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
       - name: Commit updated locales
diff --git a/.github/workflows/i18n-update-custom-nodes.yaml b/.github/workflows/i18n-update-custom-nodes.yaml
index 225c1b3e3..4c6788fad 100644
--- a/.github/workflows/i18n-update-custom-nodes.yaml
+++ b/.github/workflows/i18n-update-custom-nodes.yaml
@@ -67,7 +67,7 @@ jobs:
         env:
           PLAYWRIGHT_TEST_URL: http://localhost:5173
       - name: Update translations
-        run: pnpm locale
+        run: pnpm locale && pnpm fix-i18n-node-defs
         env:
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
       - name: Diff base vs updated i18n
diff --git a/.github/workflows/i18n-update-nodes.yaml b/.github/workflows/i18n-update-nodes.yaml
index 5a72e5b10..8c974addb 100644
--- a/.github/workflows/i18n-update-nodes.yaml
+++ b/.github/workflows/i18n-update-nodes.yaml
@@ -36,7 +36,7 @@ jobs:
         env:
           PLAYWRIGHT_TEST_URL: http://localhost:5173
       - name: Update translations
-        run: pnpm locale
+        run: pnpm locale && pnpm fix-i18n-node-defs
         env:
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
       - name: Create Pull Request
diff --git a/package.json b/package.json
index 643b3c71a..9181a69b9 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,7 @@
     "dev": "nx serve",
     "devtools:pycheck": "python3 -m compileall -q tools/devtools",
     "format:check": "oxfmt --check",
+    "fix-i18n-node-defs": "tsx scripts/fix-i18n-node-defs.ts",
     "format": "oxfmt --write",
     "json-schema": "tsx scripts/generate-json-schema.ts",
     "knip:no-cache": "knip",
diff --git a/scripts/fix-i18n-node-defs.ts b/scripts/fix-i18n-node-defs.ts
new file mode 100644
index 000000000..569e79be6
--- /dev/null
+++ b/scripts/fix-i18n-node-defs.ts
@@ -0,0 +1,66 @@
+import { readFileSync, readdirSync, writeFileSync } from 'fs'
+import { join } from 'path'
+
+const LOCALES_DIR = 'src/locales'
+
+/**
+ * Convert arrays with numeric indices back to objects.
+ * GPT-4.1 (used by @lobehub/i18n-cli) sometimes converts
+ * {"0": {...}, "1": {...}} objects into JSON arrays with null gaps.
+ */
+function fixArraysToObjects(value: unknown): Record<string, unknown> | unknown {
+  if (!value || typeof value !== 'object') return value
+
+  if (Array.isArray(value)) {
+    const obj: Record<string, unknown> = {}
+    for (let i = 0; i < value.length; i++) {
+      if (value[i] != null) {
+        obj[String(i)] = fixArraysToObjects(value[i])
+      }
+    }
+    return obj
+  }
+
+  const record = value as Record<string, unknown>
+  const result: Record<string, unknown> = {}
+  for (const key of Object.keys(record)) {
+    result[key] = fixArraysToObjects(record[key])
+  }
+  return result
+}
+
+function run() {
+  const locales = readdirSync(LOCALES_DIR, { withFileTypes: true })
+    .filter((d) => d.isDirectory() && d.name !== 'en')
+    .map((d) => d.name)
+
+  let totalFixes = 0
+
+  for (const locale of locales) {
+    const filePath = join(LOCALES_DIR, locale, 'nodeDefs.json')
+    let raw: string
+    try {
+      raw = readFileSync(filePath, 'utf-8')
+    } catch {
+      continue
+    }
+
+    const data = JSON.parse(raw)
+    const fixed = fixArraysToObjects(data) as Record<string, unknown>
+    const fixedJson = JSON.stringify(fixed, null, 2) + '\n'
+
+    if (fixedJson !== raw) {
+      writeFileSync(filePath, fixedJson)
+      totalFixes++
+      console.warn(`Fixed: ${filePath}`)
+    }
+  }
+
+  if (totalFixes === 0) {
+    console.warn('No fixes needed')
+  } else {
+    console.warn(`Fixed ${totalFixes} file(s)`)
+  }
+}
+
+run()