diff --git a/packages/cli/src/lib/new/factories/backendPlugin.ts b/packages/cli/src/lib/new/factories/backendPlugin.ts
index e1bfac5eb8..c5cd043132 100644
--- a/packages/cli/src/lib/new/factories/backendPlugin.ts
+++ b/packages/cli/src/lib/new/factories/backendPlugin.ts
@@ -96,7 +96,7 @@ export const backendPlugin = createFactory<Options>({
         );
 
         if (backendStartIndex !== -1) {
-          const [indentation] = lines[backendStartIndex].match(/^\s*/) ?? [];
+          const [indentation] = lines[backendStartIndex].match(/^\s*/)!;
           lines.splice(backendStartIndex, 0, `${indentation}${backendAddLine}`);
 
           const newContent = lines.join('\n');