diff --git a/.changeset/large-experts-poke.md b/.changeset/large-experts-poke.md
new file mode 100644
index 0000000000..9f6ca640b6
--- /dev/null
+++ b/.changeset/large-experts-poke.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-linguist-backend': patch
+---
+
+Fixed bug in LinguistBackendClient.ts file where if the linguistJsOptions is specified and sent over to the linguist-js package it would get changed (another attribute would be added) causing future entities of the batch to fail with an error
diff --git a/plugins/linguist-backend/src/api/LinguistBackendClient.ts b/plugins/linguist-backend/src/api/LinguistBackendClient.ts
index 53da0bee22..1be4a7d288 100644
--- a/plugins/linguist-backend/src/api/LinguistBackendClient.ts
+++ b/plugins/linguist-backend/src/api/LinguistBackendClient.ts
@@ -261,7 +261,7 @@ export class LinguistBackendClient implements LinguistBackendApi {
 
   /** @internal */
   async getLinguistResults(dir: string): Promise<Results> {
-    const results = await linguist(dir, this.linguistJsOptions);
+    const results = await linguist(dir, { ...this.linguistJsOptions });
     return results;
   }
 }