diff --git a/packages/backend/src/websocket/handlers/sftp.handler.ts b/packages/backend/src/websocket/handlers/sftp.handler.ts
index cfd8bb7..6025d0a 100644
--- a/packages/backend/src/websocket/handlers/sftp.handler.ts
+++ b/packages/backend/src/websocket/handlers/sftp.handler.ts
@@ -46,7 +46,9 @@ export async function handleSftpOperation(
                 const fileContent = payload?.content ?? payload?.data ?? '';
                 const encoding = payload?.encoding;
                 if (payload?.path) {
-                    const dataToSend = (typeof fileContent === 'string') ? fileContent : '';
+                    let dataToSend = (typeof fileContent === 'string') ? fileContent : '';
+                    // Convert only true line endings (CRLF and standalone CR not followed by LF) to LF to ensure Unix-compatible line endings
+                    dataToSend = dataToSend.replace(/\r\n/g, '\n').replace(/\r(?!\n)/g, '\n');
                     sftpService.writefile(sessionId, payload.path, dataToSend, requestId, encoding);
                 } else throw new Error("Missing 'path' in payload for writefile");
                 break;