diff --git a/lib/init-action.js b/lib/init-action.js
index 53c1de265..3cd5e4206 100644
--- a/lib/init-action.js
+++ b/lib/init-action.js
@@ -89013,7 +89013,7 @@ async function getGeneratedFiles(workingDirectory) {
     workingDirectory,
     ["check-attr", "linguist-generated", "--stdin"],
     "Unable to check attributes of files.",
-    { input: Buffer.from(files.join(" ")) }
+    { input: Buffer.from(files.join(os2.EOL)) }
   );
   const generatedFiles = [];
   const regex = /^([^:]+): linguist-generated: true$/;
diff --git a/src/git-utils.ts b/src/git-utils.ts
index 6f41983cb..002f6f056 100644
--- a/src/git-utils.ts
+++ b/src/git-utils.ts
@@ -427,7 +427,7 @@ export async function getGeneratedFiles(
     workingDirectory,
     ["check-attr", "linguist-generated", "--stdin"],
     "Unable to check attributes of files.",
-    { input: Buffer.from(files.join(" ")) },
+    { input: Buffer.from(files.join(os.EOL)) },
   );
 
   const generatedFiles: string[] = [];