diff --git a/esphome/components/web_server_idf/__init__.py b/esphome/components/web_server_idf/__init__.py
index dfb32107e8..cc453cb60e 100644
--- a/esphome/components/web_server_idf/__init__.py
+++ b/esphome/components/web_server_idf/__init__.py
@@ -1,6 +1,6 @@
 from esphome.components.esp32 import add_idf_component, add_idf_sdkconfig_option
 import esphome.config_validation as cv
-from esphome.const import CONF_OTA
+from esphome.const import CONF_OTA, CONF_WEB_SERVER
 from esphome.core import CORE
 
 CODEOWNERS = ["@dentra"]
@@ -16,7 +16,7 @@ async def to_code(config):
     add_idf_sdkconfig_option("CONFIG_HTTPD_MAX_REQ_HDR_LEN", 1024)
 
     # Check if web_server component has OTA enabled
-    web_server_config = CORE.config.get("web_server", {})
+    web_server_config = CORE.config.get(CONF_WEB_SERVER, {})
     if web_server_config and web_server_config[CONF_OTA] and "ota" in CORE.config:
         # Add multipart parser component for ESP-IDF OTA support
         add_idf_component(name="zorxx/multipart-parser", ref="1.0.1")