diff --git a/esphome/espota2.py b/esphome/espota2.py
index ba47e6af0d..6e8936668b 100644
--- a/esphome/espota2.py
+++ b/esphome/espota2.py
@@ -286,8 +286,9 @@ def perform_ota(
         [RESPONSE_REQUEST_AUTH, RESPONSE_REQUEST_SHA256_AUTH, RESPONSE_AUTH_OK],
     )
 
-    hash_func, nonce_size, hash_name = _AUTH_METHODS[auth]
-    perform_auth(sock, password, hash_func, nonce_size, hash_name)
+    if auth != RESPONSE_AUTH_OK:
+        hash_func, nonce_size, hash_name = _AUTH_METHODS[auth]
+        perform_auth(sock, password, hash_func, nonce_size, hash_name)
 
     # Set higher timeout during upload
     sock.settimeout(30.0)